Home / 133,109.27-183,691.17-72,680.43

Finding the Fourth Proportional to 133,109.27, 183,691.17 and 72,680.43

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Solution

The fourth proportional to 133,109.27, 183,691.17 and 72,680.43 is: 100,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,109.27 : 183,691.17 = 72,680.43 : x
  2. Step 2: Convert to fraction form
    133,109.27/183,691.17 = 72,680.43/x
  3. Step 3: Cross multiply
    133,109.27x = 183,691.17 × 72,680.43
  4. Step 4: Simplify right side
    133,109.27x = 13,350,753,222.80
  5. Step 5: Solve for x
    x = 13,350,753,222.80/133,109.27
  6. Step 6: Final answer
    x = 100,299.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.