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Finding the Fourth Proportional to 134.10, 184.99 and 104.54

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Solution

The fourth proportional to 134.10, 184.99 and 104.54 is: 144.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.10 : 184.99 = 104.54 : x
  2. Step 2: Convert to fraction form
    134.10/184.99 = 104.54/x
  3. Step 3: Cross multiply
    134.10x = 184.99 × 104.54
  4. Step 4: Simplify right side
    134.10x = 19,337.41
  5. Step 5: Solve for x
    x = 19,337.41/134.10
  6. Step 6: Final answer
    x = 144.21

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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.