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Finding the Fourth Proportional to 110.63, 166.73 and 92.77

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Solution

The fourth proportional to 110.63, 166.73 and 92.77 is: 139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.63 : 166.73 = 92.77 : x
  2. Step 2: Convert to fraction form
    110.63/166.73 = 92.77/x
  3. Step 3: Cross multiply
    110.63x = 166.73 × 92.77
  4. Step 4: Simplify right side
    110.63x = 15,467.54
  5. Step 5: Solve for x
    x = 15,467.54/110.63
  6. Step 6: Final answer
    x = 139.81

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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.