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Finding the Fourth Proportional to 187,793.80, 281,687.98 and 45,640.12

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Solution

The fourth proportional to 187,793.80, 281,687.98 and 45,640.12 is: 68,459.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,793.80 : 281,687.98 = 45,640.12 : x
  2. Step 2: Convert to fraction form
    187,793.80/281,687.98 = 45,640.12/x
  3. Step 3: Cross multiply
    187,793.80x = 281,687.98 × 45,640.12
  4. Step 4: Simplify right side
    187,793.80x = 12,856,273,209.76
  5. Step 5: Solve for x
    x = 12,856,273,209.76/187,793.80
  6. Step 6: Final answer
    x = 68,459.52

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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.