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Finding the Fourth Proportional to 105.93, 145.35 and 95.49

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Solution

The fourth proportional to 105.93, 145.35 and 95.49 is: 131.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105.93 : 145.35 = 95.49 : x
  2. Step 2: Convert to fraction form
    105.93/145.35 = 95.49/x
  3. Step 3: Cross multiply
    105.93x = 145.35 × 95.49
  4. Step 4: Simplify right side
    105.93x = 13,879.47
  5. Step 5: Solve for x
    x = 13,879.47/105.93
  6. Step 6: Final answer
    x = 131.02

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.