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Finding the Fourth Proportional to 102.44, 141.46 and 73.46

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Solution

The fourth proportional to 102.44, 141.46 and 73.46 is: 101.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102.44 : 141.46 = 73.46 : x
  2. Step 2: Convert to fraction form
    102.44/141.46 = 73.46/x
  3. Step 3: Cross multiply
    102.44x = 141.46 × 73.46
  4. Step 4: Simplify right side
    102.44x = 10,391.65
  5. Step 5: Solve for x
    x = 10,391.65/102.44
  6. Step 6: Final answer
    x = 101.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.