Home / 138,083.11-207,127.23-43,311.19

Finding the Fourth Proportional to 138,083.11, 207,127.23 and 43,311.19

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Solution

The fourth proportional to 138,083.11, 207,127.23 and 43,311.19 is: 64,967.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,083.11 : 207,127.23 = 43,311.19 : x
  2. Step 2: Convert to fraction form
    138,083.11/207,127.23 = 43,311.19/x
  3. Step 3: Cross multiply
    138,083.11x = 207,127.23 × 43,311.19
  4. Step 4: Simplify right side
    138,083.11x = 8,970,926,812.70
  5. Step 5: Solve for x
    x = 8,970,926,812.70/138,083.11
  6. Step 6: Final answer
    x = 64,967.59

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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.