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Finding the Fourth Proportional to 104.08, 155.94 and 63.42

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Solution

The fourth proportional to 104.08, 155.94 and 63.42 is: 95.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    104.08 : 155.94 = 63.42 : x
  2. Step 2: Convert to fraction form
    104.08/155.94 = 63.42/x
  3. Step 3: Cross multiply
    104.08x = 155.94 × 63.42
  4. Step 4: Simplify right side
    104.08x = 9,888.89
  5. Step 5: Solve for x
    x = 9,888.89/104.08
  6. Step 6: Final answer
    x = 95.01

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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.