Home / 109,662.20-164,493.30-107,912.60

Finding the Fourth Proportional to 109,662.20, 164,493.30 and 107,912.60

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Solution

The fourth proportional to 109,662.20, 164,493.30 and 107,912.60 is: 161,868.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,662.20 : 164,493.30 = 107,912.60 : x
  2. Step 2: Convert to fraction form
    109,662.20/164,493.30 = 107,912.60/x
  3. Step 3: Cross multiply
    109,662.20x = 164,493.30 × 107,912.60
  4. Step 4: Simplify right side
    109,662.20x = 17,750,899,685.58
  5. Step 5: Solve for x
    x = 17,750,899,685.58/109,662.20
  6. Step 6: Final answer
    x = 161,868.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.