Home / 134,553.30-201,657.15-81,906.90

Finding the Fourth Proportional to 134,553.30, 201,657.15 and 81,906.90

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Solution

The fourth proportional to 134,553.30, 201,657.15 and 81,906.90 is: 122,755.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,553.30 : 201,657.15 = 81,906.90 : x
  2. Step 2: Convert to fraction form
    134,553.30/201,657.15 = 81,906.90/x
  3. Step 3: Cross multiply
    134,553.30x = 201,657.15 × 81,906.90
  4. Step 4: Simplify right side
    134,553.30x = 16,517,112,019.34
  5. Step 5: Solve for x
    x = 16,517,112,019.34/134,553.30
  6. Step 6: Final answer
    x = 122,755.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.