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Finding the Fourth Proportional to 134.70, 201.08 and 118.50

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Solution

The fourth proportional to 134.70, 201.08 and 118.50 is: 176.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.70 : 201.08 = 118.50 : x
  2. Step 2: Convert to fraction form
    134.70/201.08 = 118.50/x
  3. Step 3: Cross multiply
    134.70x = 201.08 × 118.50
  4. Step 4: Simplify right side
    134.70x = 23,827.39
  5. Step 5: Solve for x
    x = 23,827.39/134.70
  6. Step 6: Final answer
    x = 176.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.