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Finding the Fourth Proportional to 123,759.54, 170,788.32 and 67,170.93

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Solution

The fourth proportional to 123,759.54, 170,788.32 and 67,170.93 is: 92,695.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,759.54 : 170,788.32 = 67,170.93 : x
  2. Step 2: Convert to fraction form
    123,759.54/170,788.32 = 67,170.93/x
  3. Step 3: Cross multiply
    123,759.54x = 170,788.32 × 67,170.93
  4. Step 4: Simplify right side
    123,759.54x = 11,472,010,287.54
  5. Step 5: Solve for x
    x = 11,472,010,287.54/123,759.54
  6. Step 6: Final answer
    x = 92,695.97

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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.