Home / 129,625.20-194,413.80-36,111.60

Finding the Fourth Proportional to 129,625.20, 194,413.80 and 36,111.60

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Solution

The fourth proportional to 129,625.20, 194,413.80 and 36,111.60 is: 54,160.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,625.20 : 194,413.80 = 36,111.60 : x
  2. Step 2: Convert to fraction form
    129,625.20/194,413.80 = 36,111.60/x
  3. Step 3: Cross multiply
    129,625.20x = 194,413.80 × 36,111.60
  4. Step 4: Simplify right side
    129,625.20x = 7,020,593,380.08
  5. Step 5: Solve for x
    x = 7,020,593,380.08/129,625.20
  6. Step 6: Final answer
    x = 54,160.71

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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.