Home / 121,789.20-182,776.32-98,154.48

Finding the Fourth Proportional to 121,789.20, 182,776.32 and 98,154.48

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Solution

The fourth proportional to 121,789.20, 182,776.32 and 98,154.48 is: 147,306.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,789.20 : 182,776.32 = 98,154.48 : x
  2. Step 2: Convert to fraction form
    121,789.20/182,776.32 = 98,154.48/x
  3. Step 3: Cross multiply
    121,789.20x = 182,776.32 × 98,154.48
  4. Step 4: Simplify right side
    121,789.20x = 17,940,314,645.91
  5. Step 5: Solve for x
    x = 17,940,314,645.91/121,789.20
  6. Step 6: Final answer
    x = 147,306.29

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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.