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Finding the Fourth Proportional to 98.37, 134.89 and 94.94

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Solution

The fourth proportional to 98.37, 134.89 and 94.94 is: 130.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    98.37 : 134.89 = 94.94 : x
  2. Step 2: Convert to fraction form
    98.37/134.89 = 94.94/x
  3. Step 3: Cross multiply
    98.37x = 134.89 × 94.94
  4. Step 4: Simplify right side
    98.37x = 12,805.78
  5. Step 5: Solve for x
    x = 12,805.78/98.37
  6. Step 6: Final answer
    x = 130.18

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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.