Home / 198,424.08-273,830.17-107,780.02

Finding the Fourth Proportional to 198,424.08, 273,830.17 and 107,780.02

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Solution

The fourth proportional to 198,424.08, 273,830.17 and 107,780.02 is: 148,739.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,424.08 : 273,830.17 = 107,780.02 : x
  2. Step 2: Convert to fraction form
    198,424.08/273,830.17 = 107,780.02/x
  3. Step 3: Cross multiply
    198,424.08x = 273,830.17 × 107,780.02
  4. Step 4: Simplify right side
    198,424.08x = 29,513,420,447.27
  5. Step 5: Solve for x
    x = 29,513,420,447.27/198,424.08
  6. Step 6: Final answer
    x = 148,739.11

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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.