Home / 138,519.24-207,759.96-49,759.98

Finding the Fourth Proportional to 138,519.24, 207,759.96 and 49,759.98

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Solution

The fourth proportional to 138,519.24, 207,759.96 and 49,759.98 is: 74,633.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,519.24 : 207,759.96 = 49,759.98 : x
  2. Step 2: Convert to fraction form
    138,519.24/207,759.96 = 49,759.98/x
  3. Step 3: Cross multiply
    138,519.24x = 207,759.96 × 49,759.98
  4. Step 4: Simplify right side
    138,519.24x = 10,338,131,454.40
  5. Step 5: Solve for x
    x = 10,338,131,454.40/138,519.24
  6. Step 6: Final answer
    x = 74,633.18

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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.