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Finding the Fourth Proportional to 116.24, 159.44 and 101.66

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Solution

The fourth proportional to 116.24, 159.44 and 101.66 is: 139.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.24 : 159.44 = 101.66 : x
  2. Step 2: Convert to fraction form
    116.24/159.44 = 101.66/x
  3. Step 3: Cross multiply
    116.24x = 159.44 × 101.66
  4. Step 4: Simplify right side
    116.24x = 16,207.36
  5. Step 5: Solve for x
    x = 16,207.36/116.24
  6. Step 6: Final answer
    x = 139.44

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.