Home / 206,717.48-285,314.55-126,127.70

Finding the Fourth Proportional to 206,717.48, 285,314.55 and 126,127.70

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Solution

The fourth proportional to 206,717.48, 285,314.55 and 126,127.70 is: 174,083.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,717.48 : 285,314.55 = 126,127.70 : x
  2. Step 2: Convert to fraction form
    206,717.48/285,314.55 = 126,127.70/x
  3. Step 3: Cross multiply
    206,717.48x = 285,314.55 × 126,127.70
  4. Step 4: Simplify right side
    206,717.48x = 35,986,067,968.04
  5. Step 5: Solve for x
    x = 35,986,067,968.04/206,717.48
  6. Step 6: Final answer
    x = 174,083.33

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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.