if the length in the shoebox is 4 inch in height 3 width and 144 is the volume what is the answer explain ?

It looks like you want to find a missing dimension, but I can't tell from your question which one you're missing.

I'll let "x" represent the missing dimension and you can plug it in where you need to.....

3 * 4 * x = 144

12 * x = 144        Divide by 12 on each side

x = 12