Home / 206,939.20-310,335.90-73,823.80

Finding the Fourth Proportional to 206,939.20, 310,335.90 and 73,823.80

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Solution

The fourth proportional to 206,939.20, 310,335.90 and 73,823.80 is: 110,709.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,939.20 : 310,335.90 = 73,823.80 : x
  2. Step 2: Convert to fraction form
    206,939.20/310,335.90 = 73,823.80/x
  3. Step 3: Cross multiply
    206,939.20x = 310,335.90 × 73,823.80
  4. Step 4: Simplify right side
    206,939.20x = 22,910,175,414.42
  5. Step 5: Solve for x
    x = 22,910,175,414.42/206,939.20
  6. Step 6: Final answer
    x = 110,709.69

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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.