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Finding the Fourth Proportional to 110.94, 166.08 and 103.95

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Solution

The fourth proportional to 110.94, 166.08 and 103.95 is: 155.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.94 : 166.08 = 103.95 : x
  2. Step 2: Convert to fraction form
    110.94/166.08 = 103.95/x
  3. Step 3: Cross multiply
    110.94x = 166.08 × 103.95
  4. Step 4: Simplify right side
    110.94x = 17,264.02
  5. Step 5: Solve for x
    x = 17,264.02/110.94
  6. Step 6: Final answer
    x = 155.62

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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.