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Finding the Fourth Proportional to 94.72, 141.66 and 67.58

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Solution

The fourth proportional to 94.72, 141.66 and 67.58 is: 101.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.72 : 141.66 = 67.58 : x
  2. Step 2: Convert to fraction form
    94.72/141.66 = 67.58/x
  3. Step 3: Cross multiply
    94.72x = 141.66 × 67.58
  4. Step 4: Simplify right side
    94.72x = 9,573.38
  5. Step 5: Solve for x
    x = 9,573.38/94.72
  6. Step 6: Final answer
    x = 101.07

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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.