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Finding the Fourth Proportional to 154.68, 213.50 and 95.67

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Solution

The fourth proportional to 154.68, 213.50 and 95.67 is: 132.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.68 : 213.50 = 95.67 : x
  2. Step 2: Convert to fraction form
    154.68/213.50 = 95.67/x
  3. Step 3: Cross multiply
    154.68x = 213.50 × 95.67
  4. Step 4: Simplify right side
    154.68x = 20,425.07
  5. Step 5: Solve for x
    x = 20,425.07/154.68
  6. Step 6: Final answer
    x = 132.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.