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Finding the Fourth Proportional to 111.24, 153.10 and 97.46

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Solution

The fourth proportional to 111.24, 153.10 and 97.46 is: 134.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.24 : 153.10 = 97.46 : x
  2. Step 2: Convert to fraction form
    111.24/153.10 = 97.46/x
  3. Step 3: Cross multiply
    111.24x = 153.10 × 97.46
  4. Step 4: Simplify right side
    111.24x = 14,921.13
  5. Step 5: Solve for x
    x = 14,921.13/111.24
  6. Step 6: Final answer
    x = 134.13

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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.