Home / 187,731.30-281,234.07-104,372.58

Finding the Fourth Proportional to 187,731.30, 281,234.07 and 104,372.58

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Solution

The fourth proportional to 187,731.30, 281,234.07 and 104,372.58 is: 156,357.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,731.30 : 281,234.07 = 104,372.58 : x
  2. Step 2: Convert to fraction form
    187,731.30/281,234.07 = 104,372.58/x
  3. Step 3: Cross multiply
    187,731.30x = 281,234.07 × 104,372.58
  4. Step 4: Simplify right side
    187,731.30x = 29,353,125,469.80
  5. Step 5: Solve for x
    x = 29,353,125,469.80/187,731.30
  6. Step 6: Final answer
    x = 156,357.12

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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.