Home / 138,052.20-206,786.70-114,724.20

Finding the Fourth Proportional to 138,052.20, 206,786.70 and 114,724.20

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Solution

The fourth proportional to 138,052.20, 206,786.70 and 114,724.20 is: 171,843.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,052.20 : 206,786.70 = 114,724.20 : x
  2. Step 2: Convert to fraction form
    138,052.20/206,786.70 = 114,724.20/x
  3. Step 3: Cross multiply
    138,052.20x = 206,786.70 × 114,724.20
  4. Step 4: Simplify right side
    138,052.20x = 23,723,438,728.14
  5. Step 5: Solve for x
    x = 23,723,438,728.14/138,052.20
  6. Step 6: Final answer
    x = 171,843.97

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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.