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Finding the Fourth Proportional to 101.04, 140.12 and 98.04

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Solution

The fourth proportional to 101.04, 140.12 and 98.04 is: 135.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.04 : 140.12 = 98.04 : x
  2. Step 2: Convert to fraction form
    101.04/140.12 = 98.04/x
  3. Step 3: Cross multiply
    101.04x = 140.12 × 98.04
  4. Step 4: Simplify right side
    101.04x = 13,737.36
  5. Step 5: Solve for x
    x = 13,737.36/101.04
  6. Step 6: Final answer
    x = 135.96

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.