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Finding the Fourth Proportional to 98.08, 134.30 and 93.44

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Solution

The fourth proportional to 98.08, 134.30 and 93.44 is: 127.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98.08 : 134.30 = 93.44 : x
  2. Step 2: Convert to fraction form
    98.08/134.30 = 93.44/x
  3. Step 3: Cross multiply
    98.08x = 134.30 × 93.44
  4. Step 4: Simplify right side
    98.08x = 12,549.56
  5. Step 5: Solve for x
    x = 12,549.56/98.08
  6. Step 6: Final answer
    x = 127.96

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.