Home / 123,413.52-170,310.78-66,824.76

Finding the Fourth Proportional to 123,413.52, 170,310.78 and 66,824.76

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Solution

The fourth proportional to 123,413.52, 170,310.78 and 66,824.76 is: 92,218.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,413.52 : 170,310.78 = 66,824.76 : x
  2. Step 2: Convert to fraction form
    123,413.52/170,310.78 = 66,824.76/x
  3. Step 3: Cross multiply
    123,413.52x = 170,310.78 × 66,824.76
  4. Step 4: Simplify right side
    123,413.52x = 11,380,976,998.91
  5. Step 5: Solve for x
    x = 11,380,976,998.91/123,413.52
  6. Step 6: Final answer
    x = 92,218.24

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1.5x scale

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.