Home / 149,613.43-206,438.33-89,189.70

Finding the Fourth Proportional to 149,613.43, 206,438.33 and 89,189.70

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Solution

The fourth proportional to 149,613.43, 206,438.33 and 89,189.70 is: 123,064.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,613.43 : 206,438.33 = 89,189.70 : x
  2. Step 2: Convert to fraction form
    149,613.43/206,438.33 = 89,189.70/x
  3. Step 3: Cross multiply
    149,613.43x = 206,438.33 × 89,189.70
  4. Step 4: Simplify right side
    149,613.43x = 18,412,172,721.20
  5. Step 5: Solve for x
    x = 18,412,172,721.20/149,613.43
  6. Step 6: Final answer
    x = 123,064.97

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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.