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Finding the Fourth Proportional to 187,459.92, 281,189.88 and 82,279.80

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Solution

The fourth proportional to 187,459.92, 281,189.88 and 82,279.80 is: 123,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,459.92 : 281,189.88 = 82,279.80 : x
  2. Step 2: Convert to fraction form
    187,459.92/281,189.88 = 82,279.80/x
  3. Step 3: Cross multiply
    187,459.92x = 281,189.88 × 82,279.80
  4. Step 4: Simplify right side
    187,459.92x = 23,136,247,088.42
  5. Step 5: Solve for x
    x = 23,136,247,088.42/187,459.92
  6. Step 6: Final answer
    x = 123,419.70

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1.5x scale

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.