Finding the Fourth Proportional to 131.00, 196.20 and 101.96

Step by Step Solution

1. Step 1: Write the proportion equation
   131.00 : 196.20 = 101.96 : x
2. Step 2: Convert to fraction form
   131.00/196.20 = 101.96/x
3. Step 3: Cross multiply
   131.00x = 196.20 × 101.96
4. Step 4: Simplify right side
   131.00x = 20,003.57
5. Step 5: Solve for x
   x = 20,003.57/131.00
6. Step 6: Final answer
   x = 152.70