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Finding the Fourth Proportional to 123,149.44, 169,832.64 and 91,397.44

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Solution

The fourth proportional to 123,149.44, 169,832.64 and 91,397.44 is: 126,044.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,149.44 : 169,832.64 = 91,397.44 : x
  2. Step 2: Convert to fraction form
    123,149.44/169,832.64 = 91,397.44/x
  3. Step 3: Cross multiply
    123,149.44x = 169,832.64 × 91,397.44
  4. Step 4: Simplify right side
    123,149.44x = 15,522,268,524.44
  5. Step 5: Solve for x
    x = 15,522,268,524.44/123,149.44
  6. Step 6: Final answer
    x = 126,044.17

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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.