Home / 138,400.20-207,600.30-88,536.60

Finding the Fourth Proportional to 138,400.20, 207,600.30 and 88,536.60

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Solution

The fourth proportional to 138,400.20, 207,600.30 and 88,536.60 is: 132,804.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,400.20 : 207,600.30 = 88,536.60 : x
  2. Step 2: Convert to fraction form
    138,400.20/207,600.30 = 88,536.60/x
  3. Step 3: Cross multiply
    138,400.20x = 207,600.30 × 88,536.60
  4. Step 4: Simplify right side
    138,400.20x = 18,380,224,720.98
  5. Step 5: Solve for x
    x = 18,380,224,720.98/138,400.20
  6. Step 6: Final answer
    x = 132,804.90

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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.