Home / 206,331.18-309,543.42-73,211.58

Finding the Fourth Proportional to 206,331.18, 309,543.42 and 73,211.58

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Solution

The fourth proportional to 206,331.18, 309,543.42 and 73,211.58 is: 109,833.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,331.18 : 309,543.42 = 73,211.58 : x
  2. Step 2: Convert to fraction form
    206,331.18/309,543.42 = 73,211.58/x
  3. Step 3: Cross multiply
    206,331.18x = 309,543.42 × 73,211.58
  4. Step 4: Simplify right side
    206,331.18x = 22,662,162,856.80
  5. Step 5: Solve for x
    x = 22,662,162,856.80/206,331.18
  6. Step 6: Final answer
    x = 109,833.92

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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.