Home / 143,747.01-198,377.01-80,084.79

Finding the Fourth Proportional to 143,747.01, 198,377.01 and 80,084.79

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Solution

The fourth proportional to 143,747.01, 198,377.01 and 80,084.79 is: 110,520.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,747.01 : 198,377.01 = 80,084.79 : x
  2. Step 2: Convert to fraction form
    143,747.01/198,377.01 = 80,084.79/x
  3. Step 3: Cross multiply
    143,747.01x = 198,377.01 × 80,084.79
  4. Step 4: Simplify right side
    143,747.01x = 15,886,981,186.68
  5. Step 5: Solve for x
    x = 15,886,981,186.68/143,747.01
  6. Step 6: Final answer
    x = 110,520.43

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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.