Home / 175,789.68-242,633.16-100,381.92

Finding the Fourth Proportional to 175,789.68, 242,633.16 and 100,381.92

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Solution

The fourth proportional to 175,789.68, 242,633.16 and 100,381.92 is: 138,551.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,789.68 : 242,633.16 = 100,381.92 : x
  2. Step 2: Convert to fraction form
    175,789.68/242,633.16 = 100,381.92/x
  3. Step 3: Cross multiply
    175,789.68x = 242,633.16 × 100,381.92
  4. Step 4: Simplify right side
    175,789.68x = 24,355,982,456.47
  5. Step 5: Solve for x
    x = 24,355,982,456.47/175,789.68
  6. Step 6: Final answer
    x = 138,551.83

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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.