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Finding the Fourth Proportional to 120,469.46, 166,236.02 and 69,486.86

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Solution

The fourth proportional to 120,469.46, 166,236.02 and 69,486.86 is: 95,885.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,469.46 : 166,236.02 = 69,486.86 : x
  2. Step 2: Convert to fraction form
    120,469.46/166,236.02 = 69,486.86/x
  3. Step 3: Cross multiply
    120,469.46x = 166,236.02 × 69,486.86
  4. Step 4: Simplify right side
    120,469.46x = 11,551,219,048.70
  5. Step 5: Solve for x
    x = 11,551,219,048.70/120,469.46
  6. Step 6: Final answer
    x = 95,885.04

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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.