Home / 138,130.55-207,234.11-58,149.24

Finding the Fourth Proportional to 138,130.55, 207,234.11 and 58,149.24

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Solution

The fourth proportional to 138,130.55, 207,234.11 and 58,149.24 is: 87,239.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,130.55 : 207,234.11 = 58,149.24 : x
  2. Step 2: Convert to fraction form
    138,130.55/207,234.11 = 58,149.24/x
  3. Step 3: Cross multiply
    138,130.55x = 207,234.11 × 58,149.24
  4. Step 4: Simplify right side
    138,130.55x = 12,050,505,998.58
  5. Step 5: Solve for x
    x = 12,050,505,998.58/138,130.55
  6. Step 6: Final answer
    x = 87,239.98

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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.