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Finding the Fourth Proportional to 130.59, 195.63 and 108.93

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Solution

The fourth proportional to 130.59, 195.63 and 108.93 is: 163.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.59 : 195.63 = 108.93 : x
  2. Step 2: Convert to fraction form
    130.59/195.63 = 108.93/x
  3. Step 3: Cross multiply
    130.59x = 195.63 × 108.93
  4. Step 4: Simplify right side
    130.59x = 21,309.98
  5. Step 5: Solve for x
    x = 21,309.98/130.59
  6. Step 6: Final answer
    x = 163.18

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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.