To find 92.9% of 148, you can use the following calculation:
\[ 0.929 \times 148 \]
Calculating this gives:
\[ 0.929 \times 148 = 137.012 \]
Now, rounding 137.012 to the nearest tenth, we look at the hundredths place (which is 1), and since it is less than 5, we round down.
Therefore, 92.9% of 148, rounded to the nearest tenth, is:
\[ \boxed{137.0} \]