Home / 187,819.24-259,190.04-101,780.61

Finding the Fourth Proportional to 187,819.24, 259,190.04 and 101,780.61

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Solution

The fourth proportional to 187,819.24, 259,190.04 and 101,780.61 is: 140,456.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,819.24 : 259,190.04 = 101,780.61 : x
  2. Step 2: Convert to fraction form
    187,819.24/259,190.04 = 101,780.61/x
  3. Step 3: Cross multiply
    187,819.24x = 259,190.04 × 101,780.61
  4. Step 4: Simplify right side
    187,819.24x = 26,380,520,377.12
  5. Step 5: Solve for x
    x = 26,380,520,377.12/187,819.24
  6. Step 6: Final answer
    x = 140,456.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.