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Finding the Fourth Proportional to 103.17, 154.80 and 49.06

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Solution

The fourth proportional to 103.17, 154.80 and 49.06 is: 73.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103.17 : 154.80 = 49.06 : x
  2. Step 2: Convert to fraction form
    103.17/154.80 = 49.06/x
  3. Step 3: Cross multiply
    103.17x = 154.80 × 49.06
  4. Step 4: Simplify right side
    103.17x = 7,594.10
  5. Step 5: Solve for x
    x = 7,594.10/103.17
  6. Step 6: Final answer
    x = 73.61

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