Home / 188,367.16-259,961.25-107,819.95

Finding the Fourth Proportional to 188,367.16, 259,961.25 and 107,819.95

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Solution

The fourth proportional to 188,367.16, 259,961.25 and 107,819.95 is: 148,799.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,367.16 : 259,961.25 = 107,819.95 : x
  2. Step 2: Convert to fraction form
    188,367.16/259,961.25 = 107,819.95/x
  3. Step 3: Cross multiply
    188,367.16x = 259,961.25 × 107,819.95
  4. Step 4: Simplify right side
    188,367.16x = 28,029,008,976.94
  5. Step 5: Solve for x
    x = 28,029,008,976.94/188,367.16
  6. Step 6: Final answer
    x = 148,799.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.