Home / 138,196.26-207,163.16-54,010.43

Finding the Fourth Proportional to 138,196.26, 207,163.16 and 54,010.43

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Solution

The fourth proportional to 138,196.26, 207,163.16 and 54,010.43 is: 80,964.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,196.26 : 207,163.16 = 54,010.43 : x
  2. Step 2: Convert to fraction form
    138,196.26/207,163.16 = 54,010.43/x
  3. Step 3: Cross multiply
    138,196.26x = 207,163.16 × 54,010.43
  4. Step 4: Simplify right side
    138,196.26x = 11,188,970,045.89
  5. Step 5: Solve for x
    x = 11,188,970,045.89/138,196.26
  6. Step 6: Final answer
    x = 80,964.35

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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.