Home / 138,760.20-207,921.60-116,452.80

Finding the Fourth Proportional to 138,760.20, 207,921.60 and 116,452.80

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Solution

The fourth proportional to 138,760.20, 207,921.60 and 116,452.80 is: 174,495.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,760.20 : 207,921.60 = 116,452.80 : x
  2. Step 2: Convert to fraction form
    138,760.20/207,921.60 = 116,452.80/x
  3. Step 3: Cross multiply
    138,760.20x = 207,921.60 × 116,452.80
  4. Step 4: Simplify right side
    138,760.20x = 24,213,052,500.48
  5. Step 5: Solve for x
    x = 24,213,052,500.48/138,760.20
  6. Step 6: Final answer
    x = 174,495.66

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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.