Home / 83,910.15-125,865.23-77,494.95

Finding the Fourth Proportional to 83,910.15, 125,865.23 and 77,494.95

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Solution

The fourth proportional to 83,910.15, 125,865.23 and 77,494.95 is: 116,242.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,910.15 : 125,865.23 = 77,494.95 : x
  2. Step 2: Convert to fraction form
    83,910.15/125,865.23 = 77,494.95/x
  3. Step 3: Cross multiply
    83,910.15x = 125,865.23 × 77,494.95
  4. Step 4: Simplify right side
    83,910.15x = 9,753,919,318.11
  5. Step 5: Solve for x
    x = 9,753,919,318.11/83,910.15
  6. Step 6: Final answer
    x = 116,242.43

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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.