Home / 206,740.97-285,333.77-126,215.45

Finding the Fourth Proportional to 206,740.97, 285,333.77 and 126,215.45

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Solution

The fourth proportional to 206,740.97, 285,333.77 and 126,215.45 is: 174,196.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,740.97 : 285,333.77 = 126,215.45 : x
  2. Step 2: Convert to fraction form
    206,740.97/285,333.77 = 126,215.45/x
  3. Step 3: Cross multiply
    206,740.97x = 285,333.77 × 126,215.45
  4. Step 4: Simplify right side
    206,740.97x = 36,013,530,180.75
  5. Step 5: Solve for x
    x = 36,013,530,180.75/206,740.97
  6. Step 6: Final answer
    x = 174,196.39

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1.5x scale

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.