Home / 132,156.90-198,624.15-115,049.70

Finding the Fourth Proportional to 132,156.90, 198,624.15 and 115,049.70

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Solution

The fourth proportional to 132,156.90, 198,624.15 and 115,049.70 is: 172,913.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,156.90 : 198,624.15 = 115,049.70 : x
  2. Step 2: Convert to fraction form
    132,156.90/198,624.15 = 115,049.70/x
  3. Step 3: Cross multiply
    132,156.90x = 198,624.15 × 115,049.70
  4. Step 4: Simplify right side
    132,156.90x = 22,851,648,870.26
  5. Step 5: Solve for x
    x = 22,851,648,870.26/132,156.90
  6. Step 6: Final answer
    x = 172,913.02

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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.