Home / 168,023.27-231,871.39-91,542.13

Finding the Fourth Proportional to 168,023.27, 231,871.39 and 91,542.13

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Solution

The fourth proportional to 168,023.27, 231,871.39 and 91,542.13 is: 126,327.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,023.27 : 231,871.39 = 91,542.13 : x
  2. Step 2: Convert to fraction form
    168,023.27/231,871.39 = 91,542.13/x
  3. Step 3: Cross multiply
    168,023.27x = 231,871.39 × 91,542.13
  4. Step 4: Simplify right side
    168,023.27x = 21,226,000,926.66
  5. Step 5: Solve for x
    x = 21,226,000,926.66/168,023.27
  6. Step 6: Final answer
    x = 126,327.75

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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.