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Finding the Fourth Proportional to 181,489.80, 272,151.38 and 106,645.12

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Solution

The fourth proportional to 181,489.80, 272,151.38 and 106,645.12 is: 159,918.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,489.80 : 272,151.38 = 106,645.12 : x
  2. Step 2: Convert to fraction form
    181,489.80/272,151.38 = 106,645.12/x
  3. Step 3: Cross multiply
    181,489.80x = 272,151.38 × 106,645.12
  4. Step 4: Simplify right side
    181,489.80x = 29,023,616,578.27
  5. Step 5: Solve for x
    x = 29,023,616,578.27/181,489.80
  6. Step 6: Final answer
    x = 159,918.72

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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.