Home / 132,743.20-198,823.20-115,247.20

Finding the Fourth Proportional to 132,743.20, 198,823.20 and 115,247.20

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Solution

The fourth proportional to 132,743.20, 198,823.20 and 115,247.20 is: 172,617.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,743.20 : 198,823.20 = 115,247.20 : x
  2. Step 2: Convert to fraction form
    132,743.20/198,823.20 = 115,247.20/x
  3. Step 3: Cross multiply
    132,743.20x = 198,823.20 × 115,247.20
  4. Step 4: Simplify right side
    132,743.20x = 22,913,817,095.04
  5. Step 5: Solve for x
    x = 22,913,817,095.04/132,743.20
  6. Step 6: Final answer
    x = 172,617.63

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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.