Home / 206,066.18-309,010.17-71,144.48

Finding the Fourth Proportional to 206,066.18, 309,010.17 and 71,144.48

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Solution

The fourth proportional to 206,066.18, 309,010.17 and 71,144.48 is: 106,685.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,066.18 : 309,010.17 = 71,144.48 : x
  2. Step 2: Convert to fraction form
    206,066.18/309,010.17 = 71,144.48/x
  3. Step 3: Cross multiply
    206,066.18x = 309,010.17 × 71,144.48
  4. Step 4: Simplify right side
    206,066.18x = 21,984,368,898.68
  5. Step 5: Solve for x
    x = 21,984,368,898.68/206,066.18
  6. Step 6: Final answer
    x = 106,685.96

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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.