Home / 138,406.05-207,609.21-38,566.53

Finding the Fourth Proportional to 138,406.05, 207,609.21 and 38,566.53

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Solution

The fourth proportional to 138,406.05, 207,609.21 and 38,566.53 is: 57,849.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,406.05 : 207,609.21 = 38,566.53 : x
  2. Step 2: Convert to fraction form
    138,406.05/207,609.21 = 38,566.53/x
  3. Step 3: Cross multiply
    138,406.05x = 207,609.21 × 38,566.53
  4. Step 4: Simplify right side
    138,406.05x = 8,006,766,825.74
  5. Step 5: Solve for x
    x = 8,006,766,825.74/138,406.05
  6. Step 6: Final answer
    x = 57,849.83

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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.