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Finding the Fourth Proportional to 123,810.30, 170,860.08 and 67,221.66

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Solution

The fourth proportional to 123,810.30, 170,860.08 and 67,221.66 is: 92,766.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,810.30 : 170,860.08 = 67,221.66 : x
  2. Step 2: Convert to fraction form
    123,810.30/170,860.08 = 67,221.66/x
  3. Step 3: Cross multiply
    123,810.30x = 170,860.08 × 67,221.66
  4. Step 4: Simplify right side
    123,810.30x = 11,485,498,205.33
  5. Step 5: Solve for x
    x = 11,485,498,205.33/123,810.30
  6. Step 6: Final answer
    x = 92,766.90

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