Home / 132,540.20-198,518.70-115,044.20

Finding the Fourth Proportional to 132,540.20, 198,518.70 and 115,044.20

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Solution

The fourth proportional to 132,540.20, 198,518.70 and 115,044.20 is: 172,313.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,540.20 : 198,518.70 = 115,044.20 : x
  2. Step 2: Convert to fraction form
    132,540.20/198,518.70 = 115,044.20/x
  3. Step 3: Cross multiply
    132,540.20x = 198,518.70 × 115,044.20
  4. Step 4: Simplify right side
    132,540.20x = 22,838,425,026.54
  5. Step 5: Solve for x
    x = 22,838,425,026.54/132,540.20
  6. Step 6: Final answer
    x = 172,313.19

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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.