There is one term is wrong in each  series given below. Find out the wrong term of each series.

19, 23, 32, 48, 73, 109, 154

To find the wrong term in the given series, let us first analyze the differences between consecutive terms:

$23-19=4$ (which is $2^2$)
$32-23=9$ (which is $3^2$)
$48-32=16$ (which is $4^2$)
$73-48=25$ (which is $5^2$)
$109-73=36$ (which is $6^2$)

We can observe that the differences between consecutive terms are consecutive perfect squares starting from $2^2$.

Following this pattern, the next difference must be:
$7^2=49$

Therefore, the term following 109 should be:
$109+49=158$

However, the given term in the series is 154. Thus, 154 is the wrong term, and it should be replaced by 158.

The correct answer is 154.