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Finding the Fourth Proportional to 73.04, 110.16 and 69.73

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Solution

The fourth proportional to 73.04, 110.16 and 69.73 is: 105.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.04 : 110.16 = 69.73 : x
  2. Step 2: Convert to fraction form
    73.04/110.16 = 69.73/x
  3. Step 3: Cross multiply
    73.04x = 110.16 × 69.73
  4. Step 4: Simplify right side
    73.04x = 7,681.18
  5. Step 5: Solve for x
    x = 7,681.18/73.04
  6. Step 6: Final answer
    x = 105.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.