Home / 138,243.74-207,369.57-38,411.24

Finding the Fourth Proportional to 138,243.74, 207,369.57 and 38,411.24

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Solution

The fourth proportional to 138,243.74, 207,369.57 and 38,411.24 is: 57,617.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,243.74 : 207,369.57 = 38,411.24 : x
  2. Step 2: Convert to fraction form
    138,243.74/207,369.57 = 38,411.24/x
  3. Step 3: Cross multiply
    138,243.74x = 207,369.57 × 38,411.24
  4. Step 4: Simplify right side
    138,243.74x = 7,965,322,321.97
  5. Step 5: Solve for x
    x = 7,965,322,321.97/138,243.74
  6. Step 6: Final answer
    x = 57,617.96

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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.