Home / 198,470.78-273,890.99-107,826.72

Finding the Fourth Proportional to 198,470.78, 273,890.99 and 107,826.72

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Solution

The fourth proportional to 198,470.78, 273,890.99 and 107,826.72 is: 148,801.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,470.78 : 273,890.99 = 107,826.72 : x
  2. Step 2: Convert to fraction form
    198,470.78/273,890.99 = 107,826.72/x
  3. Step 3: Cross multiply
    198,470.78x = 273,890.99 × 107,826.72
  4. Step 4: Simplify right side
    198,470.78x = 29,532,766,550.12
  5. Step 5: Solve for x
    x = 29,532,766,550.12/198,470.78
  6. Step 6: Final answer
    x = 148,801.59

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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.