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Finding the Fourth Proportional to 98.29, 136.57 and 96.99

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Solution

The fourth proportional to 98.29, 136.57 and 96.99 is: 134.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    98.29 : 136.57 = 96.99 : x
  2. Step 2: Convert to fraction form
    98.29/136.57 = 96.99/x
  3. Step 3: Cross multiply
    98.29x = 136.57 × 96.99
  4. Step 4: Simplify right side
    98.29x = 13,245.92
  5. Step 5: Solve for x
    x = 13,245.92/98.29
  6. Step 6: Final answer
    x = 134.76

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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.