Home / 138,386.17-207,591.56-54,152.55

Finding the Fourth Proportional to 138,386.17, 207,591.56 and 54,152.55

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Solution

The fourth proportional to 138,386.17, 207,591.56 and 54,152.55 is: 81,233.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,386.17 : 207,591.56 = 54,152.55 : x
  2. Step 2: Convert to fraction form
    138,386.17/207,591.56 = 54,152.55/x
  3. Step 3: Cross multiply
    138,386.17x = 207,591.56 × 54,152.55
  4. Step 4: Simplify right side
    138,386.17x = 11,241,612,264.79
  5. Step 5: Solve for x
    x = 11,241,612,264.79/138,386.17
  6. Step 6: Final answer
    x = 81,233.64

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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.