Home / 175,731.60-242,513.68-100,287.12

Finding the Fourth Proportional to 175,731.60, 242,513.68 and 100,287.12

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Solution

The fourth proportional to 175,731.60, 242,513.68 and 100,287.12 is: 138,398.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,731.60 : 242,513.68 = 100,287.12 : x
  2. Step 2: Convert to fraction form
    175,731.60/242,513.68 = 100,287.12/x
  3. Step 3: Cross multiply
    175,731.60x = 242,513.68 × 100,287.12
  4. Step 4: Simplify right side
    175,731.60x = 24,320,998,527.80
  5. Step 5: Solve for x
    x = 24,320,998,527.80/175,731.60
  6. Step 6: Final answer
    x = 138,398.55

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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.