Home / 138,160.80-207,350.55-53,961.30

Finding the Fourth Proportional to 138,160.80, 207,350.55 and 53,961.30

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Solution

The fourth proportional to 138,160.80, 207,350.55 and 53,961.30 is: 80,984.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,160.80 : 207,350.55 = 53,961.30 : x
  2. Step 2: Convert to fraction form
    138,160.80/207,350.55 = 53,961.30/x
  3. Step 3: Cross multiply
    138,160.80x = 207,350.55 × 53,961.30
  4. Step 4: Simplify right side
    138,160.80x = 11,188,905,233.72
  5. Step 5: Solve for x
    x = 11,188,905,233.72/138,160.80
  6. Step 6: Final answer
    x = 80,984.66

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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.