Home / 135,808.76-187,413.27-75,375.86

Finding the Fourth Proportional to 135,808.76, 187,413.27 and 75,375.86

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Solution

The fourth proportional to 135,808.76, 187,413.27 and 75,375.86 is: 104,017.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,808.76 : 187,413.27 = 75,375.86 : x
  2. Step 2: Convert to fraction form
    135,808.76/187,413.27 = 75,375.86/x
  3. Step 3: Cross multiply
    135,808.76x = 187,413.27 × 75,375.86
  4. Step 4: Simplify right side
    135,808.76x = 14,126,436,401.66
  5. Step 5: Solve for x
    x = 14,126,436,401.66/135,808.76
  6. Step 6: Final answer
    x = 104,017.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.