Home / 120,694.37-166,568.67-66,989.75

Finding the Fourth Proportional to 120,694.37, 166,568.67 and 66,989.75

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Solution

The fourth proportional to 120,694.37, 166,568.67 and 66,989.75 is: 92,451.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,694.37 : 166,568.67 = 66,989.75 : x
  2. Step 2: Convert to fraction form
    120,694.37/166,568.67 = 66,989.75/x
  3. Step 3: Cross multiply
    120,694.37x = 166,568.67 × 66,989.75
  4. Step 4: Simplify right side
    120,694.37x = 11,158,392,728.29
  5. Step 5: Solve for x
    x = 11,158,392,728.29/120,694.37
  6. Step 6: Final answer
    x = 92,451.65

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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.