Home / 206,145.28-284,481.92-115,504.64

Finding the Fourth Proportional to 206,145.28, 284,481.92 and 115,504.64

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Solution

The fourth proportional to 206,145.28, 284,481.92 and 115,504.64 is: 159,397.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,145.28 : 284,481.92 = 115,504.64 : x
  2. Step 2: Convert to fraction form
    206,145.28/284,481.92 = 115,504.64/x
  3. Step 3: Cross multiply
    206,145.28x = 284,481.92 × 115,504.64
  4. Step 4: Simplify right side
    206,145.28x = 32,858,981,756.11
  5. Step 5: Solve for x
    x = 32,858,981,756.11/206,145.28
  6. Step 6: Final answer
    x = 159,397.21

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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.