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Finding the Fourth Proportional to 130.07, 195.14 and 113.67

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Solution

The fourth proportional to 130.07, 195.14 and 113.67 is: 170.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.07 : 195.14 = 113.67 : x
  2. Step 2: Convert to fraction form
    130.07/195.14 = 113.67/x
  3. Step 3: Cross multiply
    130.07x = 195.14 × 113.67
  4. Step 4: Simplify right side
    130.07x = 22,180.02
  5. Step 5: Solve for x
    x = 22,180.02/130.07
  6. Step 6: Final answer
    x = 170.53

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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.