Home / 132,108.40-198,162.60-108,488.80

Finding the Fourth Proportional to 132,108.40, 198,162.60 and 108,488.80

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Solution

The fourth proportional to 132,108.40, 198,162.60 and 108,488.80 is: 162,733.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,108.40 : 198,162.60 = 108,488.80 : x
  2. Step 2: Convert to fraction form
    132,108.40/198,162.60 = 108,488.80/x
  3. Step 3: Cross multiply
    132,108.40x = 198,162.60 × 108,488.80
  4. Step 4: Simplify right side
    132,108.40x = 21,498,422,678.88
  5. Step 5: Solve for x
    x = 21,498,422,678.88/132,108.40
  6. Step 6: Final answer
    x = 162,733.20

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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.