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Finding the Fourth Proportional to 104.06, 155.40 and 102.04

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Solution

The fourth proportional to 104.06, 155.40 and 102.04 is: 152.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104.06 : 155.40 = 102.04 : x
  2. Step 2: Convert to fraction form
    104.06/155.40 = 102.04/x
  3. Step 3: Cross multiply
    104.06x = 155.40 × 102.04
  4. Step 4: Simplify right side
    104.06x = 15,857.02
  5. Step 5: Solve for x
    x = 15,857.02/104.06
  6. Step 6: Final answer
    x = 152.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.