Home / 132,413.40-198,620.10-79,269.30

Finding the Fourth Proportional to 132,413.40, 198,620.10 and 79,269.30

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Solution

The fourth proportional to 132,413.40, 198,620.10 and 79,269.30 is: 118,903.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,413.40 : 198,620.10 = 79,269.30 : x
  2. Step 2: Convert to fraction form
    132,413.40/198,620.10 = 79,269.30/x
  3. Step 3: Cross multiply
    132,413.40x = 198,620.10 × 79,269.30
  4. Step 4: Simplify right side
    132,413.40x = 15,744,476,292.93
  5. Step 5: Solve for x
    x = 15,744,476,292.93/132,413.40
  6. Step 6: Final answer
    x = 118,903.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.