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Finding the Fourth Proportional to 123,896.80, 170,969.16 and 67,306.96

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Solution

The fourth proportional to 123,896.80, 170,969.16 and 67,306.96 is: 92,879.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,896.80 : 170,969.16 = 67,306.96 : x
  2. Step 2: Convert to fraction form
    123,896.80/170,969.16 = 67,306.96/x
  3. Step 3: Cross multiply
    123,896.80x = 170,969.16 × 67,306.96
  4. Step 4: Simplify right side
    123,896.80x = 11,507,414,413.35
  5. Step 5: Solve for x
    x = 11,507,414,413.35/123,896.80
  6. Step 6: Final answer
    x = 92,879.03

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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.