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Finding the Fourth Proportional to 105.44, 158.08 and 88.32

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Solution

The fourth proportional to 105.44, 158.08 and 88.32 is: 132.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105.44 : 158.08 = 88.32 : x
  2. Step 2: Convert to fraction form
    105.44/158.08 = 88.32/x
  3. Step 3: Cross multiply
    105.44x = 158.08 × 88.32
  4. Step 4: Simplify right side
    105.44x = 13,961.63
  5. Step 5: Solve for x
    x = 13,961.63/105.44
  6. Step 6: Final answer
    x = 132.41

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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.