Home / 154,413.67-231,660.44-90,425.86

Finding the Fourth Proportional to 154,413.67, 231,660.44 and 90,425.86

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Solution

The fourth proportional to 154,413.67, 231,660.44 and 90,425.86 is: 135,662.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,413.67 : 231,660.44 = 90,425.86 : x
  2. Step 2: Convert to fraction form
    154,413.67/231,660.44 = 90,425.86/x
  3. Step 3: Cross multiply
    154,413.67x = 231,660.44 × 90,425.86
  4. Step 4: Simplify right side
    154,413.67x = 20,948,094,514.98
  5. Step 5: Solve for x
    x = 20,948,094,514.98/154,413.67
  6. Step 6: Final answer
    x = 135,662.18

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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.