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Finding the Fourth Proportional to 115.88, 159.71 and 95.09

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Solution

The fourth proportional to 115.88, 159.71 and 95.09 is: 131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115.88 : 159.71 = 95.09 : x
  2. Step 2: Convert to fraction form
    115.88/159.71 = 95.09/x
  3. Step 3: Cross multiply
    115.88x = 159.71 × 95.09
  4. Step 4: Simplify right side
    115.88x = 15,185.55
  5. Step 5: Solve for x
    x = 15,185.55/115.88
  6. Step 6: Final answer
    x = 131.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.