Home / 138,905.04-192,061.62-132,519

Finding the Fourth Proportional to 138,905.04, 192,061.62 and 132,519

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Solution

The fourth proportional to 138,905.04, 192,061.62 and 132,519 is: 183,231.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,905.04 : 192,061.62 = 132,519 : x
  2. Step 2: Convert to fraction form
    138,905.04/192,061.62 = 132,519/x
  3. Step 3: Cross multiply
    138,905.04x = 192,061.62 × 132,519
  4. Step 4: Simplify right side
    138,905.04x = 25,451,813,820.78
  5. Step 5: Solve for x
    x = 25,451,813,820.78/138,905.04
  6. Step 6: Final answer
    x = 183,231.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.