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Finding the Fourth Proportional to 120,550.64, 166,344.44 and 66,835.12

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Solution

The fourth proportional to 120,550.64, 166,344.44 and 66,835.12 is: 92,223.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,550.64 : 166,344.44 = 66,835.12 : x
  2. Step 2: Convert to fraction form
    120,550.64/166,344.44 = 66,835.12/x
  3. Step 3: Cross multiply
    120,550.64x = 166,344.44 × 66,835.12
  4. Step 4: Simplify right side
    120,550.64x = 11,117,650,608.73
  5. Step 5: Solve for x
    x = 11,117,650,608.73/120,550.64
  6. Step 6: Final answer
    x = 92,223.90

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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.