Home / 168,819.86-253,229.78-68,979.95

Finding the Fourth Proportional to 168,819.86, 253,229.78 and 68,979.95

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Solution

The fourth proportional to 168,819.86, 253,229.78 and 68,979.95 is: 103,469.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,819.86 : 253,229.78 = 68,979.95 : x
  2. Step 2: Convert to fraction form
    168,819.86/253,229.78 = 68,979.95/x
  3. Step 3: Cross multiply
    168,819.86x = 253,229.78 × 68,979.95
  4. Step 4: Simplify right side
    168,819.86x = 17,467,777,218.01
  5. Step 5: Solve for x
    x = 17,467,777,218.01/168,819.86
  6. Step 6: Final answer
    x = 103,469.92

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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.