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Finding the Fourth Proportional to 136,016.80, 203,882.84 and 51,724.28

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Solution

The fourth proportional to 136,016.80, 203,882.84 and 51,724.28 is: 77,532.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,016.80 : 203,882.84 = 51,724.28 : x
  2. Step 2: Convert to fraction form
    136,016.80/203,882.84 = 51,724.28/x
  3. Step 3: Cross multiply
    136,016.80x = 203,882.84 × 51,724.28
  4. Step 4: Simplify right side
    136,016.80x = 10,545,693,103.36
  5. Step 5: Solve for x
    x = 10,545,693,103.36/136,016.80
  6. Step 6: Final answer
    x = 77,532.28

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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.