Home / 187,915.38-281,320.11-125,430.90

Finding the Fourth Proportional to 187,915.38, 281,320.11 and 125,430.90

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Solution

The fourth proportional to 187,915.38, 281,320.11 and 125,430.90 is: 187,777.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,915.38 : 281,320.11 = 125,430.90 : x
  2. Step 2: Convert to fraction form
    187,915.38/281,320.11 = 125,430.90/x
  3. Step 3: Cross multiply
    187,915.38x = 281,320.11 × 125,430.90
  4. Step 4: Simplify right side
    187,915.38x = 35,286,234,585.40
  5. Step 5: Solve for x
    x = 35,286,234,585.40/187,915.38
  6. Step 6: Final answer
    x = 187,777.26

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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.