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Finding the Fourth Proportional to 113.74, 169.73 and 101.59

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Solution

The fourth proportional to 113.74, 169.73 and 101.59 is: 151.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.74 : 169.73 = 101.59 : x
  2. Step 2: Convert to fraction form
    113.74/169.73 = 101.59/x
  3. Step 3: Cross multiply
    113.74x = 169.73 × 101.59
  4. Step 4: Simplify right side
    113.74x = 17,242.87
  5. Step 5: Solve for x
    x = 17,242.87/113.74
  6. Step 6: Final answer
    x = 151.60

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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.