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Finding the Fourth Proportional to 110.53, 152.46 and 73.18

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Solution

The fourth proportional to 110.53, 152.46 and 73.18 is: 100.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.53 : 152.46 = 73.18 : x
  2. Step 2: Convert to fraction form
    110.53/152.46 = 73.18/x
  3. Step 3: Cross multiply
    110.53x = 152.46 × 73.18
  4. Step 4: Simplify right side
    110.53x = 11,156.84
  5. Step 5: Solve for x
    x = 11,156.84/110.53
  6. Step 6: Final answer
    x = 100.94

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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.