Home / 198,837.75-274,396.10-109,413.75

Finding the Fourth Proportional to 198,837.75, 274,396.10 and 109,413.75

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Solution

The fourth proportional to 198,837.75, 274,396.10 and 109,413.75 is: 150,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,837.75 : 274,396.10 = 109,413.75 : x
  2. Step 2: Convert to fraction form
    198,837.75/274,396.10 = 109,413.75/x
  3. Step 3: Cross multiply
    198,837.75x = 274,396.10 × 109,413.75
  4. Step 4: Simplify right side
    198,837.75x = 30,022,705,739.31
  5. Step 5: Solve for x
    x = 30,022,705,739.31/198,837.75
  6. Step 6: Final answer
    x = 150,990.98

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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.