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Finding the Fourth Proportional to 94.93, 141.76 and 79.59

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Solution

The fourth proportional to 94.93, 141.76 and 79.59 is: 118.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.93 : 141.76 = 79.59 : x
  2. Step 2: Convert to fraction form
    94.93/141.76 = 79.59/x
  3. Step 3: Cross multiply
    94.93x = 141.76 × 79.59
  4. Step 4: Simplify right side
    94.93x = 11,283.31
  5. Step 5: Solve for x
    x = 11,283.31/94.93
  6. Step 6: Final answer
    x = 118.86

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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.