Home / 138,799.92-207,884.56-108,626.16

Finding the Fourth Proportional to 138,799.92, 207,884.56 and 108,626.16

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Solution

The fourth proportional to 138,799.92, 207,884.56 and 108,626.16 is: 162,692.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,799.92 : 207,884.56 = 108,626.16 : x
  2. Step 2: Convert to fraction form
    138,799.92/207,884.56 = 108,626.16/x
  3. Step 3: Cross multiply
    138,799.92x = 207,884.56 × 108,626.16
  4. Step 4: Simplify right side
    138,799.92x = 22,581,701,476.09
  5. Step 5: Solve for x
    x = 22,581,701,476.09/138,799.92
  6. Step 6: Final answer
    x = 162,692.47

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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.