Home / 120,942.30-166,902.36-66,496.76

Finding the Fourth Proportional to 120,942.30, 166,902.36 and 66,496.76

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Solution

The fourth proportional to 120,942.30, 166,902.36 and 66,496.76 is: 91,766.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,942.30 : 166,902.36 = 66,496.76 : x
  2. Step 2: Convert to fraction form
    120,942.30/166,902.36 = 66,496.76/x
  3. Step 3: Cross multiply
    120,942.30x = 166,902.36 × 66,496.76
  4. Step 4: Simplify right side
    120,942.30x = 11,098,466,176.35
  5. Step 5: Solve for x
    x = 11,098,466,176.35/120,942.30
  6. Step 6: Final answer
    x = 91,766.62

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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.