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Finding the Fourth Proportional to 116.30, 160.48 and 63.84

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Solution

The fourth proportional to 116.30, 160.48 and 63.84 is: 88.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.30 : 160.48 = 63.84 : x
  2. Step 2: Convert to fraction form
    116.30/160.48 = 63.84/x
  3. Step 3: Cross multiply
    116.30x = 160.48 × 63.84
  4. Step 4: Simplify right side
    116.30x = 10,244.24
  5. Step 5: Solve for x
    x = 10,244.24/116.30
  6. Step 6: Final answer
    x = 88.09

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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.