Home / 206,701.72-285,279.60-126,176.20

Finding the Fourth Proportional to 206,701.72, 285,279.60 and 126,176.20

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Solution

The fourth proportional to 206,701.72, 285,279.60 and 126,176.20 is: 174,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,701.72 : 285,279.60 = 126,176.20 : x
  2. Step 2: Convert to fraction form
    206,701.72/285,279.60 = 126,176.20/x
  3. Step 3: Cross multiply
    206,701.72x = 285,279.60 × 126,176.20
  4. Step 4: Simplify right side
    206,701.72x = 35,995,495,865.52
  5. Step 5: Solve for x
    x = 35,995,495,865.52/206,701.72
  6. Step 6: Final answer
    x = 174,142.22

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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.