Home / 206,736.72-285,327.92-126,211.20

Finding the Fourth Proportional to 206,736.72, 285,327.92 and 126,211.20

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Solution

The fourth proportional to 206,736.72, 285,327.92 and 126,211.20 is: 174,190.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,736.72 : 285,327.92 = 126,211.20 : x
  2. Step 2: Convert to fraction form
    206,736.72/285,327.92 = 126,211.20/x
  3. Step 3: Cross multiply
    206,736.72x = 285,327.92 × 126,211.20
  4. Step 4: Simplify right side
    206,736.72x = 36,011,579,176.70
  5. Step 5: Solve for x
    x = 36,011,579,176.70/206,736.72
  6. Step 6: Final answer
    x = 174,190.53

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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.