Home / 123,770.10-185,655.15-30,275.85

Finding the Fourth Proportional to 123,770.10, 185,655.15 and 30,275.85

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Solution

The fourth proportional to 123,770.10, 185,655.15 and 30,275.85 is: 45,413.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,770.10 : 185,655.15 = 30,275.85 : x
  2. Step 2: Convert to fraction form
    123,770.10/185,655.15 = 30,275.85/x
  3. Step 3: Cross multiply
    123,770.10x = 185,655.15 × 30,275.85
  4. Step 4: Simplify right side
    123,770.10x = 5,620,867,473.13
  5. Step 5: Solve for x
    x = 5,620,867,473.13/123,770.10
  6. Step 6: Final answer
    x = 45,413.78

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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.