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Finding the Fourth Proportional to 159,473.43, 220,105.13 and 91,536.30

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Solution

The fourth proportional to 159,473.43, 220,105.13 and 91,536.30 is: 126,338.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,473.43 : 220,105.13 = 91,536.30 : x
  2. Step 2: Convert to fraction form
    159,473.43/220,105.13 = 91,536.30/x
  3. Step 3: Cross multiply
    159,473.43x = 220,105.13 × 91,536.30
  4. Step 4: Simplify right side
    159,473.43x = 20,147,608,753.54
  5. Step 5: Solve for x
    x = 20,147,608,753.54/159,473.43
  6. Step 6: Final answer
    x = 126,338.34

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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.