Home / 123,367.52-170,247.04-66,778.88

Finding the Fourth Proportional to 123,367.52, 170,247.04 and 66,778.88

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Solution

The fourth proportional to 123,367.52, 170,247.04 and 66,778.88 is: 92,154.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,367.52 : 170,247.04 = 66,778.88 : x
  2. Step 2: Convert to fraction form
    123,367.52/170,247.04 = 66,778.88/x
  3. Step 3: Cross multiply
    123,367.52x = 170,247.04 × 66,778.88
  4. Step 4: Simplify right side
    123,367.52x = 11,368,906,654.52
  5. Step 5: Solve for x
    x = 11,368,906,654.52/123,367.52
  6. Step 6: Final answer
    x = 92,154.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.