Home / 209,170.74-288,655.46-113,677.44

Finding the Fourth Proportional to 209,170.74, 288,655.46 and 113,677.44

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Solution

The fourth proportional to 209,170.74, 288,655.46 and 113,677.44 is: 156,874.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,170.74 : 288,655.46 = 113,677.44 : x
  2. Step 2: Convert to fraction form
    209,170.74/288,655.46 = 113,677.44/x
  3. Step 3: Cross multiply
    209,170.74x = 288,655.46 × 113,677.44
  4. Step 4: Simplify right side
    209,170.74x = 32,813,613,734.82
  5. Step 5: Solve for x
    x = 32,813,613,734.82/209,170.74
  6. Step 6: Final answer
    x = 156,874.78

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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.