Home / 120,997.26-166,980.10-67,284.54

Finding the Fourth Proportional to 120,997.26, 166,980.10 and 67,284.54

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Solution

The fourth proportional to 120,997.26, 166,980.10 and 67,284.54 is: 92,854.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,997.26 : 166,980.10 = 67,284.54 : x
  2. Step 2: Convert to fraction form
    120,997.26/166,980.10 = 67,284.54/x
  3. Step 3: Cross multiply
    120,997.26x = 166,980.10 × 67,284.54
  4. Step 4: Simplify right side
    120,997.26x = 11,235,179,217.65
  5. Step 5: Solve for x
    x = 11,235,179,217.65/120,997.26
  6. Step 6: Final answer
    x = 92,854.82

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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.