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Finding the Fourth Proportional to 68.04, 102.67 and 65.23

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Solution

The fourth proportional to 68.04, 102.67 and 65.23 is: 98.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.04 : 102.67 = 65.23 : x
  2. Step 2: Convert to fraction form
    68.04/102.67 = 65.23/x
  3. Step 3: Cross multiply
    68.04x = 102.67 × 65.23
  4. Step 4: Simplify right side
    68.04x = 6,697.03
  5. Step 5: Solve for x
    x = 6,697.03/68.04
  6. Step 6: Final answer
    x = 98.43

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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.