Home / 132,066.20-198,536.70-112,820.60

Finding the Fourth Proportional to 132,066.20, 198,536.70 and 112,820.60

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Solution

The fourth proportional to 132,066.20, 198,536.70 and 112,820.60 is: 169,604.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,066.20 : 198,536.70 = 112,820.60 : x
  2. Step 2: Convert to fraction form
    132,066.20/198,536.70 = 112,820.60/x
  3. Step 3: Cross multiply
    132,066.20x = 198,536.70 × 112,820.60
  4. Step 4: Simplify right side
    132,066.20x = 22,399,029,616.02
  5. Step 5: Solve for x
    x = 22,399,029,616.02/132,066.20
  6. Step 6: Final answer
    x = 169,604.56

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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.