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Finding the Fourth Proportional to 163.81, 245.15 and 95.23

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Solution

The fourth proportional to 163.81, 245.15 and 95.23 is: 142.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.81 : 245.15 = 95.23 : x
  2. Step 2: Convert to fraction form
    163.81/245.15 = 95.23/x
  3. Step 3: Cross multiply
    163.81x = 245.15 × 95.23
  4. Step 4: Simplify right side
    163.81x = 23,345.63
  5. Step 5: Solve for x
    x = 23,345.63/163.81
  6. Step 6: Final answer
    x = 142.52

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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.