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Finding the Fourth Proportional to 102.26, 152.64 and 95.42

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Solution

The fourth proportional to 102.26, 152.64 and 95.42 is: 142.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    102.26 : 152.64 = 95.42 : x
  2. Step 2: Convert to fraction form
    102.26/152.64 = 95.42/x
  3. Step 3: Cross multiply
    102.26x = 152.64 × 95.42
  4. Step 4: Simplify right side
    102.26x = 14,565.29
  5. Step 5: Solve for x
    x = 14,565.29/102.26
  6. Step 6: Final answer
    x = 142.43

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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.