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Finding the Fourth Proportional to 94.41, 140.62 and 92.41

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Solution

The fourth proportional to 94.41, 140.62 and 92.41 is: 137.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.41 : 140.62 = 92.41 : x
  2. Step 2: Convert to fraction form
    94.41/140.62 = 92.41/x
  3. Step 3: Cross multiply
    94.41x = 140.62 × 92.41
  4. Step 4: Simplify right side
    94.41x = 12,994.69
  5. Step 5: Solve for x
    x = 12,994.69/94.41
  6. Step 6: Final answer
    x = 137.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.