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Finding the Fourth Proportional to 114.03, 171.20 and 98.84

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Solution

The fourth proportional to 114.03, 171.20 and 98.84 is: 148.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.03 : 171.20 = 98.84 : x
  2. Step 2: Convert to fraction form
    114.03/171.20 = 98.84/x
  3. Step 3: Cross multiply
    114.03x = 171.20 × 98.84
  4. Step 4: Simplify right side
    114.03x = 16,921.41
  5. Step 5: Solve for x
    x = 16,921.41/114.03
  6. Step 6: Final answer
    x = 148.39

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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.