Home / 191,211.91-263,874.14-103,997.79

Finding the Fourth Proportional to 191,211.91, 263,874.14 and 103,997.79

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Solution

The fourth proportional to 191,211.91, 263,874.14 and 103,997.79 is: 143,517.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,211.91 : 263,874.14 = 103,997.79 : x
  2. Step 2: Convert to fraction form
    191,211.91/263,874.14 = 103,997.79/x
  3. Step 3: Cross multiply
    191,211.91x = 263,874.14 × 103,997.79
  4. Step 4: Simplify right side
    191,211.91x = 27,442,327,268.15
  5. Step 5: Solve for x
    x = 27,442,327,268.15/191,211.91
  6. Step 6: Final answer
    x = 143,517.88

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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.