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Finding the Fourth Proportional to 101.25, 140.03 and 95.48

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Solution

The fourth proportional to 101.25, 140.03 and 95.48 is: 132.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.25 : 140.03 = 95.48 : x
  2. Step 2: Convert to fraction form
    101.25/140.03 = 95.48/x
  3. Step 3: Cross multiply
    101.25x = 140.03 × 95.48
  4. Step 4: Simplify right side
    101.25x = 13,369.77
  5. Step 5: Solve for x
    x = 13,369.77/101.25
  6. Step 6: Final answer
    x = 132.05

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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.