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Finding the Fourth Proportional to 140.87, 210.97 and 97.37

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Solution

The fourth proportional to 140.87, 210.97 and 97.37 is: 145.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140.87 : 210.97 = 97.37 : x
  2. Step 2: Convert to fraction form
    140.87/210.97 = 97.37/x
  3. Step 3: Cross multiply
    140.87x = 210.97 × 97.37
  4. Step 4: Simplify right side
    140.87x = 20,541.66
  5. Step 5: Solve for x
    x = 20,541.66/140.87
  6. Step 6: Final answer
    x = 145.83

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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.