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Finding the Fourth Proportional to 123,086.08, 169,858.72 and 66,497.44

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Solution

The fourth proportional to 123,086.08, 169,858.72 and 66,497.44 is: 91,766.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,086.08 : 169,858.72 = 66,497.44 : x
  2. Step 2: Convert to fraction form
    123,086.08/169,858.72 = 66,497.44/x
  3. Step 3: Cross multiply
    123,086.08x = 169,858.72 × 66,497.44
  4. Step 4: Simplify right side
    123,086.08x = 11,295,170,041.68
  5. Step 5: Solve for x
    x = 11,295,170,041.68/123,086.08
  6. Step 6: Final answer
    x = 91,766.43

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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.