Home / 138,087.76-207,175.16-49,339.28

Finding the Fourth Proportional to 138,087.76, 207,175.16 and 49,339.28

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Solution

The fourth proportional to 138,087.76, 207,175.16 and 49,339.28 is: 74,024.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,087.76 : 207,175.16 = 49,339.28 : x
  2. Step 2: Convert to fraction form
    138,087.76/207,175.16 = 49,339.28/x
  3. Step 3: Cross multiply
    138,087.76x = 207,175.16 × 49,339.28
  4. Step 4: Simplify right side
    138,087.76x = 10,221,873,228.28
  5. Step 5: Solve for x
    x = 10,221,873,228.28/138,087.76
  6. Step 6: Final answer
    x = 74,024.47

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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.