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Finding the Fourth Proportional to 187,793.56, 259,161.44 and 102,909.88

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Solution

The fourth proportional to 187,793.56, 259,161.44 and 102,909.88 is: 142,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,793.56 : 259,161.44 = 102,909.88 : x
  2. Step 2: Convert to fraction form
    187,793.56/259,161.44 = 102,909.88/x
  3. Step 3: Cross multiply
    187,793.56x = 259,161.44 × 102,909.88
  4. Step 4: Simplify right side
    187,793.56x = 26,670,272,691.03
  5. Step 5: Solve for x
    x = 26,670,272,691.03/187,793.56
  6. Step 6: Final answer
    x = 142,019.10

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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.