Question

Determine if the following is in proportion.

$33,121,9,96$

Answer 1

If $a,b,c,d$are in proportion then,

$a\times d=b\times c$

So, here we have $33,121,9,96$

in which

$a=33,b=121,c=9,d=96$

now, $33\times 96=3168$

and, $121\times 9=1089$

Hence $a\times d\ne b\times c$

So, $33,121,9,96$ are not in proportion.