Home / 206,379.14-284,682.24-129,776.76

Finding the Fourth Proportional to 206,379.14, 284,682.24 and 129,776.76

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Solution

The fourth proportional to 206,379.14, 284,682.24 and 129,776.76 is: 179,015.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,379.14 : 284,682.24 = 129,776.76 : x
  2. Step 2: Convert to fraction form
    206,379.14/284,682.24 = 129,776.76/x
  3. Step 3: Cross multiply
    206,379.14x = 284,682.24 × 129,776.76
  4. Step 4: Simplify right side
    206,379.14x = 36,945,138,736.74
  5. Step 5: Solve for x
    x = 36,945,138,736.74/206,379.14
  6. Step 6: Final answer
    x = 179,015.86

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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.