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Finding the Fourth Proportional to 101.64, 140.84 and 96.24

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Solution

The fourth proportional to 101.64, 140.84 and 96.24 is: 133.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.64 : 140.84 = 96.24 : x
  2. Step 2: Convert to fraction form
    101.64/140.84 = 96.24/x
  3. Step 3: Cross multiply
    101.64x = 140.84 × 96.24
  4. Step 4: Simplify right side
    101.64x = 13,554.44
  5. Step 5: Solve for x
    x = 13,554.44/101.64
  6. Step 6: Final answer
    x = 133.36

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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.