Home / 206,145.52-284,416.16-115,489.20

Finding the Fourth Proportional to 206,145.52, 284,416.16 and 115,489.20

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Solution

The fourth proportional to 206,145.52, 284,416.16 and 115,489.20 is: 159,338.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,145.52 : 284,416.16 = 115,489.20 : x
  2. Step 2: Convert to fraction form
    206,145.52/284,416.16 = 115,489.20/x
  3. Step 3: Cross multiply
    206,145.52x = 284,416.16 × 115,489.20
  4. Step 4: Simplify right side
    206,145.52x = 32,846,994,785.47
  5. Step 5: Solve for x
    x = 32,846,994,785.47/206,145.52
  6. Step 6: Final answer
    x = 159,338.87

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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.