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Finding the Fourth Proportional to 134.34, 201.32 and 79.50

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Solution

The fourth proportional to 134.34, 201.32 and 79.50 is: 119.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.34 : 201.32 = 79.50 : x
  2. Step 2: Convert to fraction form
    134.34/201.32 = 79.50/x
  3. Step 3: Cross multiply
    134.34x = 201.32 × 79.50
  4. Step 4: Simplify right side
    134.34x = 16,005.60
  5. Step 5: Solve for x
    x = 16,005.60/134.34
  6. Step 6: Final answer
    x = 119.15

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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.