Home / 143,821.92-198,481.04-80,160.18

Finding the Fourth Proportional to 143,821.92, 198,481.04 and 80,160.18

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Solution

The fourth proportional to 143,821.92, 198,481.04 and 80,160.18 is: 110,624.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,821.92 : 198,481.04 = 80,160.18 : x
  2. Step 2: Convert to fraction form
    143,821.92/198,481.04 = 80,160.18/x
  3. Step 3: Cross multiply
    143,821.92x = 198,481.04 × 80,160.18
  4. Step 4: Simplify right side
    143,821.92x = 15,910,275,892.99
  5. Step 5: Solve for x
    x = 15,910,275,892.99/143,821.92
  6. Step 6: Final answer
    x = 110,624.83

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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.