Home / 209,185.20-288,677.82-113,691.90

Finding the Fourth Proportional to 209,185.20, 288,677.82 and 113,691.90

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Solution

The fourth proportional to 209,185.20, 288,677.82 and 113,691.90 is: 156,896.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,185.20 : 288,677.82 = 113,691.90 : x
  2. Step 2: Convert to fraction form
    209,185.20/288,677.82 = 113,691.90/x
  3. Step 3: Cross multiply
    209,185.20x = 288,677.82 × 113,691.90
  4. Step 4: Simplify right side
    209,185.20x = 32,820,329,843.66
  5. Step 5: Solve for x
    x = 32,820,329,843.66/209,185.20
  6. Step 6: Final answer
    x = 156,896.04

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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.