Home / 138,339.22-207,695.39-88,516.57

Finding the Fourth Proportional to 138,339.22, 207,695.39 and 88,516.57

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Solution

The fourth proportional to 138,339.22, 207,695.39 and 88,516.57 is: 132,894.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,339.22 : 207,695.39 = 88,516.57 : x
  2. Step 2: Convert to fraction form
    138,339.22/207,695.39 = 88,516.57/x
  3. Step 3: Cross multiply
    138,339.22x = 207,695.39 × 88,516.57
  4. Step 4: Simplify right side
    138,339.22x = 18,384,482,489.14
  5. Step 5: Solve for x
    x = 18,384,482,489.14/138,339.22
  6. Step 6: Final answer
    x = 132,894.22

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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.