Home / 206,020.26-309,006.09-54,232.74

Finding the Fourth Proportional to 206,020.26, 309,006.09 and 54,232.74

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Solution

The fourth proportional to 206,020.26, 309,006.09 and 54,232.74 is: 81,342.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,020.26 : 309,006.09 = 54,232.74 : x
  2. Step 2: Convert to fraction form
    206,020.26/309,006.09 = 54,232.74/x
  3. Step 3: Cross multiply
    206,020.26x = 309,006.09 × 54,232.74
  4. Step 4: Simplify right side
    206,020.26x = 16,758,246,937.39
  5. Step 5: Solve for x
    x = 16,758,246,937.39/206,020.26
  6. Step 6: Final answer
    x = 81,342.71

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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.