Home / 138,340.22-207,696.89-88,517.57

Finding the Fourth Proportional to 138,340.22, 207,696.89 and 88,517.57

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Solution

The fourth proportional to 138,340.22, 207,696.89 and 88,517.57 is: 132,895.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,340.22 : 207,696.89 = 88,517.57 : x
  2. Step 2: Convert to fraction form
    138,340.22/207,696.89 = 88,517.57/x
  3. Step 3: Cross multiply
    138,340.22x = 207,696.89 × 88,517.57
  4. Step 4: Simplify right side
    138,340.22x = 18,384,823,999.36
  5. Step 5: Solve for x
    x = 18,384,823,999.36/138,340.22
  6. Step 6: Final answer
    x = 132,895.73

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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.