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Finding the Fourth Proportional to 97.44, 144.96 and 93.60

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Solution

The fourth proportional to 97.44, 144.96 and 93.60 is: 139.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.44 : 144.96 = 93.60 : x
  2. Step 2: Convert to fraction form
    97.44/144.96 = 93.60/x
  3. Step 3: Cross multiply
    97.44x = 144.96 × 93.60
  4. Step 4: Simplify right side
    97.44x = 13,568.26
  5. Step 5: Solve for x
    x = 13,568.26/97.44
  6. Step 6: Final answer
    x = 139.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.