Home / 209,188.20-288,679.74-113,694.90

Finding the Fourth Proportional to 209,188.20, 288,679.74 and 113,694.90

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Solution

The fourth proportional to 209,188.20, 288,679.74 and 113,694.90 is: 156,898.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,188.20 : 288,679.74 = 113,694.90 : x
  2. Step 2: Convert to fraction form
    209,188.20/288,679.74 = 113,694.90/x
  3. Step 3: Cross multiply
    209,188.20x = 288,679.74 × 113,694.90
  4. Step 4: Simplify right side
    209,188.20x = 32,821,414,171.33
  5. Step 5: Solve for x
    x = 32,821,414,171.33/209,188.20
  6. Step 6: Final answer
    x = 156,898.98

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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.