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Finding the Fourth Proportional to 134.84, 201.90 and 100.62

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Solution

The fourth proportional to 134.84, 201.90 and 100.62 is: 150.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.84 : 201.90 = 100.62 : x
  2. Step 2: Convert to fraction form
    134.84/201.90 = 100.62/x
  3. Step 3: Cross multiply
    134.84x = 201.90 × 100.62
  4. Step 4: Simplify right side
    134.84x = 20,315.18
  5. Step 5: Solve for x
    x = 20,315.18/134.84
  6. Step 6: Final answer
    x = 150.67

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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.