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Finding the Fourth Proportional to 105.59, 157.82 and 95.28

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Solution

The fourth proportional to 105.59, 157.82 and 95.28 is: 142.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105.59 : 157.82 = 95.28 : x
  2. Step 2: Convert to fraction form
    105.59/157.82 = 95.28/x
  3. Step 3: Cross multiply
    105.59x = 157.82 × 95.28
  4. Step 4: Simplify right side
    105.59x = 15,036.61
  5. Step 5: Solve for x
    x = 15,036.61/105.59
  6. Step 6: Final answer
    x = 142.41

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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.