Home / 198,125.89-273,413.72-113,244.78

Finding the Fourth Proportional to 198,125.89, 273,413.72 and 113,244.78

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Solution

The fourth proportional to 198,125.89, 273,413.72 and 113,244.78 is: 156,277.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,125.89 : 273,413.72 = 113,244.78 : x
  2. Step 2: Convert to fraction form
    198,125.89/273,413.72 = 113,244.78/x
  3. Step 3: Cross multiply
    198,125.89x = 273,413.72 × 113,244.78
  4. Step 4: Simplify right side
    198,125.89x = 30,962,676,570.38
  5. Step 5: Solve for x
    x = 30,962,676,570.38/198,125.89
  6. Step 6: Final answer
    x = 156,277.79

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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.