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Finding the Fourth Proportional to 102.08, 141.39 and 95.48

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Solution

The fourth proportional to 102.08, 141.39 and 95.48 is: 132.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102.08 : 141.39 = 95.48 : x
  2. Step 2: Convert to fraction form
    102.08/141.39 = 95.48/x
  3. Step 3: Cross multiply
    102.08x = 141.39 × 95.48
  4. Step 4: Simplify right side
    102.08x = 13,499.21
  5. Step 5: Solve for x
    x = 13,499.21/102.08
  6. Step 6: Final answer
    x = 132.25

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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.