How to call vector in matrix with condition?

Hello, I have: n-by-4 matrix A:

A=[ x1 y1 z1  5      % x1,y1,z1: coordinate of point 1      
    x2 y2 z2  5      % x2,y2,z2: coordinate of point 2  
    x3 y3 z3  9      % x3,y3,z3: coordinate of point 3  
    x4 y4 z4  1      % x4,y4,z4: coordinate of point 4  
    x5 y5 z5  1      % x5,y5,z5: coordinate of point 5  
    x6 y6 z6  1]     % x6,y6,z6: coordinate of point 6

Question: How can i call x,y,z from value of column 4?

Example: I wanna call only row contaning the value "[9 ;5]" in column 4?

result=[x3 y3 z3      
        x1 y1 z1
        x2 y2 z2]

or I wanna call only row contaning the value "[1; 9 ;5]" in column 4?

 result=[x4 y4 z4   
         x5 y5 z5 
         x6 y6 z6  
         x3 y3 z3      
         x1 y1 z1
         x2 y2 z2]

Answer 1

[M]

Maybe something like this :

m=[1 2 3 10;4 5 6 15;7 8 9 20]
m=
   1     2     3    10
   4     5     6    15
   7     8     9    20

result=m(ismember(m(:,size(m,2)),[15;20]),1:end-1)

result = 

     4     5     6
     7     8     9

or a second example :

m=[1 2 3 4 5 50;7 8 9 10 11 50;12 13 14 15 16 60]
m =

     1     2     3     4     5    50
     7     8     9    10    11    50
    12    13    14    15    16    60

result=m(ismember(m(:,size(m,2)),50),1:end-1)
result =

     1     2     3     4     5
     7     8     9    10    11

Answer 2

[Star Strider]

Try this example:

A = [randi(9, 6, 3) [5 5 9 1 1 1]'];
Idx1 = any(A(:,4) == [9 5], 2);
B1 = A(Idx1, 1:3);
Idx2 = any(A(:,4) == [9 5 1], 2);
B2 = A(Idx2, 1:3);