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Finding the Fourth Proportional to 94.22, 141.42 and 60.05

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Solution

The fourth proportional to 94.22, 141.42 and 60.05 is: 90.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.22 : 141.42 = 60.05 : x
  2. Step 2: Convert to fraction form
    94.22/141.42 = 60.05/x
  3. Step 3: Cross multiply
    94.22x = 141.42 × 60.05
  4. Step 4: Simplify right side
    94.22x = 8,491.56
  5. Step 5: Solve for x
    x = 8,491.56/94.22
  6. Step 6: Final answer
    x = 90.12

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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.