Home / 143,691.76-198,298.17-80,030.62

Finding the Fourth Proportional to 143,691.76, 198,298.17 and 80,030.62

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Solution

The fourth proportional to 143,691.76, 198,298.17 and 80,030.62 is: 110,444.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,691.76 : 198,298.17 = 80,030.62 : x
  2. Step 2: Convert to fraction form
    143,691.76/198,298.17 = 80,030.62/x
  3. Step 3: Cross multiply
    143,691.76x = 198,298.17 × 80,030.62
  4. Step 4: Simplify right side
    143,691.76x = 15,869,925,489.97
  5. Step 5: Solve for x
    x = 15,869,925,489.97/143,691.76
  6. Step 6: Final answer
    x = 110,444.23

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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.