Answer:
This is not proportional
Explanation:
As you can see, 16 and 32 are opposites of each other. So they can 'cross out'
16 times 2 is 32 so that is ok so far.
The next two numbers are 8 and 72.
For this to be proportional 8 times 2 has to equal 72, but it doesnt.
Therefore this is NOT proportional.
-I hope this helps! -Karen