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Finding the Fourth Proportional to 94.55, 131.03 and 92.73

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Solution

The fourth proportional to 94.55, 131.03 and 92.73 is: 128.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.55 : 131.03 = 92.73 : x
  2. Step 2: Convert to fraction form
    94.55/131.03 = 92.73/x
  3. Step 3: Cross multiply
    94.55x = 131.03 × 92.73
  4. Step 4: Simplify right side
    94.55x = 12,149.29
  5. Step 5: Solve for x
    x = 12,149.29/94.55
  6. Step 6: Final answer
    x = 128.50

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.