Home / 206,786.72-285,397.08-126,261.20

Finding the Fourth Proportional to 206,786.72, 285,397.08 and 126,261.20

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Solution

The fourth proportional to 206,786.72, 285,397.08 and 126,261.20 is: 174,259.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,786.72 : 285,397.08 = 126,261.20 : x
  2. Step 2: Convert to fraction form
    206,786.72/285,397.08 = 126,261.20/x
  3. Step 3: Cross multiply
    206,786.72x = 285,397.08 × 126,261.20
  4. Step 4: Simplify right side
    206,786.72x = 36,034,577,797.30
  5. Step 5: Solve for x
    x = 36,034,577,797.30/206,786.72
  6. Step 6: Final answer
    x = 174,259.63

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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.