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Finding the Fourth Proportional to 113.46, 169.46 and 104.37

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Solution

The fourth proportional to 113.46, 169.46 and 104.37 is: 155.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.46 : 169.46 = 104.37 : x
  2. Step 2: Convert to fraction form
    113.46/169.46 = 104.37/x
  3. Step 3: Cross multiply
    113.46x = 169.46 × 104.37
  4. Step 4: Simplify right side
    113.46x = 17,686.02
  5. Step 5: Solve for x
    x = 17,686.02/113.46
  6. Step 6: Final answer
    x = 155.88

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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.