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Finding the Fourth Proportional to 94.44, 139.89 and 93.36

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Solution

The fourth proportional to 94.44, 139.89 and 93.36 is: 138.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.44 : 139.89 = 93.36 : x
  2. Step 2: Convert to fraction form
    94.44/139.89 = 93.36/x
  3. Step 3: Cross multiply
    94.44x = 139.89 × 93.36
  4. Step 4: Simplify right side
    94.44x = 13,060.13
  5. Step 5: Solve for x
    x = 13,060.13/94.44
  6. Step 6: Final answer
    x = 138.29

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.