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Finding the Fourth Proportional to 120,874.58, 166,805.70 and 67,158.44

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Solution

The fourth proportional to 120,874.58, 166,805.70 and 67,158.44 is: 92,677.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,874.58 : 166,805.70 = 67,158.44 : x
  2. Step 2: Convert to fraction form
    120,874.58/166,805.70 = 67,158.44/x
  3. Step 3: Cross multiply
    120,874.58x = 166,805.70 × 67,158.44
  4. Step 4: Simplify right side
    120,874.58x = 11,202,411,170.55
  5. Step 5: Solve for x
    x = 11,202,411,170.55/120,874.58
  6. Step 6: Final answer
    x = 92,677.97

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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.