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Finding the Fourth Proportional to 95.06, 142.31 and 88.90

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Solution

The fourth proportional to 95.06, 142.31 and 88.90 is: 133.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.06 : 142.31 = 88.90 : x
  2. Step 2: Convert to fraction form
    95.06/142.31 = 88.90/x
  3. Step 3: Cross multiply
    95.06x = 142.31 × 88.90
  4. Step 4: Simplify right side
    95.06x = 12,651.23
  5. Step 5: Solve for x
    x = 12,651.23/95.06
  6. Step 6: Final answer
    x = 133.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.