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Finding the Fourth Proportional to 95.99, 133.08 and 92.66

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Solution

The fourth proportional to 95.99, 133.08 and 92.66 is: 128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.99 : 133.08 = 92.66 : x
  2. Step 2: Convert to fraction form
    95.99/133.08 = 92.66/x
  3. Step 3: Cross multiply
    95.99x = 133.08 × 92.66
  4. Step 4: Simplify right side
    95.99x = 12,330.53
  5. Step 5: Solve for x
    x = 12,330.53/95.99
  6. Step 6: Final answer
    x = 128.45

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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.