Home / 206,273.72-309,432.18-87,957.56

Finding the Fourth Proportional to 206,273.72, 309,432.18 and 87,957.56

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Solution

The fourth proportional to 206,273.72, 309,432.18 and 87,957.56 is: 131,945.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,273.72 : 309,432.18 = 87,957.56 : x
  2. Step 2: Convert to fraction form
    206,273.72/309,432.18 = 87,957.56/x
  3. Step 3: Cross multiply
    206,273.72x = 309,432.18 × 87,957.56
  4. Step 4: Simplify right side
    206,273.72x = 27,216,899,538.28
  5. Step 5: Solve for x
    x = 27,216,899,538.28/206,273.72
  6. Step 6: Final answer
    x = 131,945.55

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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.