Home / 324,781.29-487,140.61-100,081.39

Finding the Fourth Proportional to 324,781.29, 487,140.61 and 100,081.39

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Solution

The fourth proportional to 324,781.29, 487,140.61 and 100,081.39 is: 150,112.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,781.29 : 487,140.61 = 100,081.39 : x
  2. Step 2: Convert to fraction form
    324,781.29/487,140.61 = 100,081.39/x
  3. Step 3: Cross multiply
    324,781.29x = 487,140.61 × 100,081.39
  4. Step 4: Simplify right side
    324,781.29x = 48,753,709,374.25
  5. Step 5: Solve for x
    x = 48,753,709,374.25/324,781.29
  6. Step 6: Final answer
    x = 150,112.43

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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.