Home / 138,788.92-207,868.08-108,615.10

Finding the Fourth Proportional to 138,788.92, 207,868.08 and 108,615.10

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Solution

The fourth proportional to 138,788.92, 207,868.08 and 108,615.10 is: 162,675.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,788.92 : 207,868.08 = 108,615.10 : x
  2. Step 2: Convert to fraction form
    138,788.92/207,868.08 = 108,615.10/x
  3. Step 3: Cross multiply
    138,788.92x = 207,868.08 × 108,615.10
  4. Step 4: Simplify right side
    138,788.92x = 22,577,612,296.01
  5. Step 5: Solve for x
    x = 22,577,612,296.01/138,788.92
  6. Step 6: Final answer
    x = 162,675.90

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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.