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Finding the Fourth Proportional to 115.18, 173.16 and 101.02

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Solution

The fourth proportional to 115.18, 173.16 and 101.02 is: 151.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115.18 : 173.16 = 101.02 : x
  2. Step 2: Convert to fraction form
    115.18/173.16 = 101.02/x
  3. Step 3: Cross multiply
    115.18x = 173.16 × 101.02
  4. Step 4: Simplify right side
    115.18x = 17,492.62
  5. Step 5: Solve for x
    x = 17,492.62/115.18
  6. Step 6: Final answer
    x = 151.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.