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Finding the Fourth Proportional to 122.67, 183.89 and 97.08

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Solution

The fourth proportional to 122.67, 183.89 and 97.08 is: 145.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.67 : 183.89 = 97.08 : x
  2. Step 2: Convert to fraction form
    122.67/183.89 = 97.08/x
  3. Step 3: Cross multiply
    122.67x = 183.89 × 97.08
  4. Step 4: Simplify right side
    122.67x = 17,851.56
  5. Step 5: Solve for x
    x = 17,851.56/122.67
  6. Step 6: Final answer
    x = 145.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.