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Finding the Fourth Proportional to 90,600.68, 125,146.60 and 68,958.96

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Solution

The fourth proportional to 90,600.68, 125,146.60 and 68,958.96 is: 95,252.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,600.68 : 125,146.60 = 68,958.96 : x
  2. Step 2: Convert to fraction form
    90,600.68/125,146.60 = 68,958.96/x
  3. Step 3: Cross multiply
    90,600.68x = 125,146.60 × 68,958.96
  4. Step 4: Simplify right side
    90,600.68x = 8,629,979,383.54
  5. Step 5: Solve for x
    x = 8,629,979,383.54/90,600.68
  6. Step 6: Final answer
    x = 95,252.92

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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.