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Finding the Fourth Proportional to 87,494.60, 131,096.10 and 82,245.80

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Solution

The fourth proportional to 87,494.60, 131,096.10 and 82,245.80 is: 123,231.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,494.60 : 131,096.10 = 82,245.80 : x
  2. Step 2: Convert to fraction form
    87,494.60/131,096.10 = 82,245.80/x
  3. Step 3: Cross multiply
    87,494.60x = 131,096.10 × 82,245.80
  4. Step 4: Simplify right side
    87,494.60x = 10,782,103,621.38
  5. Step 5: Solve for x
    x = 10,782,103,621.38/87,494.60
  6. Step 6: Final answer
    x = 123,231.65

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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.