Home / 187,581.66-281,287.17-80,915.10

Finding the Fourth Proportional to 187,581.66, 281,287.17 and 80,915.10

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Solution

The fourth proportional to 187,581.66, 281,287.17 and 80,915.10 is: 121,335.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,581.66 : 281,287.17 = 80,915.10 : x
  2. Step 2: Convert to fraction form
    187,581.66/281,287.17 = 80,915.10/x
  3. Step 3: Cross multiply
    187,581.66x = 281,287.17 × 80,915.10
  4. Step 4: Simplify right side
    187,581.66x = 22,760,379,489.27
  5. Step 5: Solve for x
    x = 22,760,379,489.27/187,581.66
  6. Step 6: Final answer
    x = 121,335.85

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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.