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Finding the Fourth Proportional to 97.05, 146.25 and 87.94

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Solution

The fourth proportional to 97.05, 146.25 and 87.94 is: 132.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.05 : 146.25 = 87.94 : x
  2. Step 2: Convert to fraction form
    97.05/146.25 = 87.94/x
  3. Step 3: Cross multiply
    97.05x = 146.25 × 87.94
  4. Step 4: Simplify right side
    97.05x = 12,860.05
  5. Step 5: Solve for x
    x = 12,860.05/97.05
  6. Step 6: Final answer
    x = 132.51

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.