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Finding the Fourth Proportional to 168,673.80, 252,760.50 and 68,711.88

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Solution

The fourth proportional to 168,673.80, 252,760.50 and 68,711.88 is: 102,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,673.80 : 252,760.50 = 68,711.88 : x
  2. Step 2: Convert to fraction form
    168,673.80/252,760.50 = 68,711.88/x
  3. Step 3: Cross multiply
    168,673.80x = 252,760.50 × 68,711.88
  4. Step 4: Simplify right side
    168,673.80x = 17,367,649,144.74
  5. Step 5: Solve for x
    x = 17,367,649,144.74/168,673.80
  6. Step 6: Final answer
    x = 102,965.90

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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.