Home / 132,105.96-198,165.85-100,565.47

Finding the Fourth Proportional to 132,105.96, 198,165.85 and 100,565.47

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Solution

The fourth proportional to 132,105.96, 198,165.85 and 100,565.47 is: 150,853.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,105.96 : 198,165.85 = 100,565.47 : x
  2. Step 2: Convert to fraction form
    132,105.96/198,165.85 = 100,565.47/x
  3. Step 3: Cross multiply
    132,105.96x = 198,165.85 × 100,565.47
  4. Step 4: Simplify right side
    132,105.96x = 19,928,643,103.94
  5. Step 5: Solve for x
    x = 19,928,643,103.94/132,105.96
  6. Step 6: Final answer
    x = 150,853.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.