Home / 132,612.20-198,626.70-115,116.20

Finding the Fourth Proportional to 132,612.20, 198,626.70 and 115,116.20

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Solution

The fourth proportional to 132,612.20, 198,626.70 and 115,116.20 is: 172,421.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,612.20 : 198,626.70 = 115,116.20 : x
  2. Step 2: Convert to fraction form
    132,612.20/198,626.70 = 115,116.20/x
  3. Step 3: Cross multiply
    132,612.20x = 198,626.70 × 115,116.20
  4. Step 4: Simplify right side
    132,612.20x = 22,865,150,922.54
  5. Step 5: Solve for x
    x = 22,865,150,922.54/132,612.20
  6. Step 6: Final answer
    x = 172,421.17

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1.5x scale

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.