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Finding the Fourth Proportional to 101,397.74, 139,934.13 and 58,383.62

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Solution

The fourth proportional to 101,397.74, 139,934.13 and 58,383.62 is: 80,572.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,397.74 : 139,934.13 = 58,383.62 : x
  2. Step 2: Convert to fraction form
    101,397.74/139,934.13 = 58,383.62/x
  3. Step 3: Cross multiply
    101,397.74x = 139,934.13 × 58,383.62
  4. Step 4: Simplify right side
    101,397.74x = 8,169,861,070.95
  5. Step 5: Solve for x
    x = 8,169,861,070.95/101,397.74
  6. Step 6: Final answer
    x = 80,572.42

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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.