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Finding the Fourth Proportional to 181,422.52, 272,191.19 and 81,591.44

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Solution

The fourth proportional to 181,422.52, 272,191.19 and 81,591.44 is: 122,412.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,422.52 : 272,191.19 = 81,591.44 : x
  2. Step 2: Convert to fraction form
    181,422.52/272,191.19 = 81,591.44/x
  3. Step 3: Cross multiply
    181,422.52x = 272,191.19 × 81,591.44
  4. Step 4: Simplify right side
    181,422.52x = 22,208,469,378.50
  5. Step 5: Solve for x
    x = 22,208,469,378.50/181,422.52
  6. Step 6: Final answer
    x = 122,412.97

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1.5x scale

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.