Home / 120,469.68-166,312.62-76,906.04

Finding the Fourth Proportional to 120,469.68, 166,312.62 and 76,906.04

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Solution

The fourth proportional to 120,469.68, 166,312.62 and 76,906.04 is: 106,171.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,469.68 : 166,312.62 = 76,906.04 : x
  2. Step 2: Convert to fraction form
    120,469.68/166,312.62 = 76,906.04/x
  3. Step 3: Cross multiply
    120,469.68x = 166,312.62 × 76,906.04
  4. Step 4: Simplify right side
    120,469.68x = 12,790,445,595.50
  5. Step 5: Solve for x
    x = 12,790,445,595.50/120,469.68
  6. Step 6: Final answer
    x = 106,171.49

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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.