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Finding the Fourth Proportional to 123,468.26, 170,387.01 and 66,879.63

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Solution

The fourth proportional to 123,468.26, 170,387.01 and 66,879.63 is: 92,294.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,468.26 : 170,387.01 = 66,879.63 : x
  2. Step 2: Convert to fraction form
    123,468.26/170,387.01 = 66,879.63/x
  3. Step 3: Cross multiply
    123,468.26x = 170,387.01 × 66,879.63
  4. Step 4: Simplify right side
    123,468.26x = 11,395,420,185.61
  5. Step 5: Solve for x
    x = 11,395,420,185.61/123,468.26
  6. Step 6: Final answer
    x = 92,294.33

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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.