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Finding the Fourth Proportional to 122.00, 167.94 and 95.72

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Solution

The fourth proportional to 122.00, 167.94 and 95.72 is: 131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.00 : 167.94 = 95.72 : x
  2. Step 2: Convert to fraction form
    122.00/167.94 = 95.72/x
  3. Step 3: Cross multiply
    122.00x = 167.94 × 95.72
  4. Step 4: Simplify right side
    122.00x = 16,074.38
  5. Step 5: Solve for x
    x = 16,074.38/122.00
  6. Step 6: Final answer
    x = 131.76

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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.