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Finding the Fourth Proportional to 97.99, 146.92 and 40.16

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Solution

The fourth proportional to 97.99, 146.92 and 40.16 is: 60.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.99 : 146.92 = 40.16 : x
  2. Step 2: Convert to fraction form
    97.99/146.92 = 40.16/x
  3. Step 3: Cross multiply
    97.99x = 146.92 × 40.16
  4. Step 4: Simplify right side
    97.99x = 5,900.11
  5. Step 5: Solve for x
    x = 5,900.11/97.99
  6. Step 6: Final answer
    x = 60.21

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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.