Home / 138,304.07-207,324.86-49,511.87

Finding the Fourth Proportional to 138,304.07, 207,324.86 and 49,511.87

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Solution

The fourth proportional to 138,304.07, 207,324.86 and 49,511.87 is: 74,220.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,304.07 : 207,324.86 = 49,511.87 : x
  2. Step 2: Convert to fraction form
    138,304.07/207,324.86 = 49,511.87/x
  3. Step 3: Cross multiply
    138,304.07x = 207,324.86 × 49,511.87
  4. Step 4: Simplify right side
    138,304.07x = 10,265,040,231.90
  5. Step 5: Solve for x
    x = 10,265,040,231.90/138,304.07
  6. Step 6: Final answer
    x = 74,220.81

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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.