Home / 121,413.20-182,022.60-51,234.80

Finding the Fourth Proportional to 121,413.20, 182,022.60 and 51,234.80

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Solution

The fourth proportional to 121,413.20, 182,022.60 and 51,234.80 is: 76,811.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,413.20 : 182,022.60 = 51,234.80 : x
  2. Step 2: Convert to fraction form
    121,413.20/182,022.60 = 51,234.80/x
  3. Step 3: Cross multiply
    121,413.20x = 182,022.60 × 51,234.80
  4. Step 4: Simplify right side
    121,413.20x = 9,325,891,506.48
  5. Step 5: Solve for x
    x = 9,325,891,506.48/121,413.20
  6. Step 6: Final answer
    x = 76,811.18

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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.