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Finding the Fourth Proportional to 130.66, 195.57 and 125.62

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Solution

The fourth proportional to 130.66, 195.57 and 125.62 is: 188.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.66 : 195.57 = 125.62 : x
  2. Step 2: Convert to fraction form
    130.66/195.57 = 125.62/x
  3. Step 3: Cross multiply
    130.66x = 195.57 × 125.62
  4. Step 4: Simplify right side
    130.66x = 24,567.50
  5. Step 5: Solve for x
    x = 24,567.50/130.66
  6. Step 6: Final answer
    x = 188.03

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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.