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Finding the Fourth Proportional to 142.94, 197.99 and 132.41

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Solution

The fourth proportional to 142.94, 197.99 and 132.41 is: 183.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142.94 : 197.99 = 132.41 : x
  2. Step 2: Convert to fraction form
    142.94/197.99 = 132.41/x
  3. Step 3: Cross multiply
    142.94x = 197.99 × 132.41
  4. Step 4: Simplify right side
    142.94x = 26,215.86
  5. Step 5: Solve for x
    x = 26,215.86/142.94
  6. Step 6: Final answer
    x = 183.40

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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.