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Finding the Fourth Proportional to 114.99, 158.69 and 63.24

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Solution

The fourth proportional to 114.99, 158.69 and 63.24 is: 87.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.99 : 158.69 = 63.24 : x
  2. Step 2: Convert to fraction form
    114.99/158.69 = 63.24/x
  3. Step 3: Cross multiply
    114.99x = 158.69 × 63.24
  4. Step 4: Simplify right side
    114.99x = 10,035.24
  5. Step 5: Solve for x
    x = 10,035.24/114.99
  6. Step 6: Final answer
    x = 87.27

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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.