Home / 206,700.72-285,278.22-126,175.20

Finding the Fourth Proportional to 206,700.72, 285,278.22 and 126,175.20

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Solution

The fourth proportional to 206,700.72, 285,278.22 and 126,175.20 is: 174,140.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,700.72 : 285,278.22 = 126,175.20 : x
  2. Step 2: Convert to fraction form
    206,700.72/285,278.22 = 126,175.20/x
  3. Step 3: Cross multiply
    206,700.72x = 285,278.22 × 126,175.20
  4. Step 4: Simplify right side
    206,700.72x = 35,995,036,464.14
  5. Step 5: Solve for x
    x = 35,995,036,464.14/206,700.72
  6. Step 6: Final answer
    x = 174,140.84

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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.