Home / 198,460.72-273,876.15-107,815.92

Finding the Fourth Proportional to 198,460.72, 273,876.15 and 107,815.92

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Solution

The fourth proportional to 198,460.72, 273,876.15 and 107,815.92 is: 148,786.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,460.72 : 273,876.15 = 107,815.92 : x
  2. Step 2: Convert to fraction form
    198,460.72/273,876.15 = 107,815.92/x
  3. Step 3: Cross multiply
    198,460.72x = 273,876.15 × 107,815.92
  4. Step 4: Simplify right side
    198,460.72x = 29,528,209,078.31
  5. Step 5: Solve for x
    x = 29,528,209,078.31/198,460.72
  6. Step 6: Final answer
    x = 148,786.16

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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.