Home / 129,413.16-194,120.82-40,664.70

Finding the Fourth Proportional to 129,413.16, 194,120.82 and 40,664.70

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Solution

The fourth proportional to 129,413.16, 194,120.82 and 40,664.70 is: 60,997.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,413.16 : 194,120.82 = 40,664.70 : x
  2. Step 2: Convert to fraction form
    129,413.16/194,120.82 = 40,664.70/x
  3. Step 3: Cross multiply
    129,413.16x = 194,120.82 × 40,664.70
  4. Step 4: Simplify right side
    129,413.16x = 7,893,864,909.05
  5. Step 5: Solve for x
    x = 7,893,864,909.05/129,413.16
  6. Step 6: Final answer
    x = 60,997.39

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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.