Home / 132,742.20-198,821.70-115,246.20

Finding the Fourth Proportional to 132,742.20, 198,821.70 and 115,246.20

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Solution

The fourth proportional to 132,742.20, 198,821.70 and 115,246.20 is: 172,616.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,742.20 : 198,821.70 = 115,246.20 : x
  2. Step 2: Convert to fraction form
    132,742.20/198,821.70 = 115,246.20/x
  3. Step 3: Cross multiply
    132,742.20x = 198,821.70 × 115,246.20
  4. Step 4: Simplify right side
    132,742.20x = 22,913,445,402.54
  5. Step 5: Solve for x
    x = 22,913,445,402.54/132,742.20
  6. Step 6: Final answer
    x = 172,616.13

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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.