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Finding the Fourth Proportional to 120,197.44, 165,857.88 and 66,475.12

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Solution

The fourth proportional to 120,197.44, 165,857.88 and 66,475.12 is: 91,727.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,197.44 : 165,857.88 = 66,475.12 : x
  2. Step 2: Convert to fraction form
    120,197.44/165,857.88 = 66,475.12/x
  3. Step 3: Cross multiply
    120,197.44x = 165,857.88 × 66,475.12
  4. Step 4: Simplify right side
    120,197.44x = 11,025,422,475.95
  5. Step 5: Solve for x
    x = 11,025,422,475.95/120,197.44
  6. Step 6: Final answer
    x = 91,727.60

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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.