Home / 138,350.20-207,525.30-88,486.60

Finding the Fourth Proportional to 138,350.20, 207,525.30 and 88,486.60

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Solution

The fourth proportional to 138,350.20, 207,525.30 and 88,486.60 is: 132,729.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,350.20 : 207,525.30 = 88,486.60 : x
  2. Step 2: Convert to fraction form
    138,350.20/207,525.30 = 88,486.60/x
  3. Step 3: Cross multiply
    138,350.20x = 207,525.30 × 88,486.60
  4. Step 4: Simplify right side
    138,350.20x = 18,363,208,210.98
  5. Step 5: Solve for x
    x = 18,363,208,210.98/138,350.20
  6. Step 6: Final answer
    x = 132,729.90

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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.