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Finding the Fourth Proportional to 95.27, 143.69 and 92.19

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Solution

The fourth proportional to 95.27, 143.69 and 92.19 is: 139.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.27 : 143.69 = 92.19 : x
  2. Step 2: Convert to fraction form
    95.27/143.69 = 92.19/x
  3. Step 3: Cross multiply
    95.27x = 143.69 × 92.19
  4. Step 4: Simplify right side
    95.27x = 13,247.55
  5. Step 5: Solve for x
    x = 13,247.55/95.27
  6. Step 6: Final answer
    x = 139.05

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.