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Finding the Fourth Proportional to 95.18, 141.87 and 89.06

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Solution

The fourth proportional to 95.18, 141.87 and 89.06 is: 132.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.18 : 141.87 = 89.06 : x
  2. Step 2: Convert to fraction form
    95.18/141.87 = 89.06/x
  3. Step 3: Cross multiply
    95.18x = 141.87 × 89.06
  4. Step 4: Simplify right side
    95.18x = 12,634.50
  5. Step 5: Solve for x
    x = 12,634.50/95.18
  6. Step 6: Final answer
    x = 132.74

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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.