Home / 68,071.18-102,110.11-18,151.73

Finding the Fourth Proportional to 68,071.18, 102,110.11 and 18,151.73

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Solution

The fourth proportional to 68,071.18, 102,110.11 and 18,151.73 is: 27,228.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,071.18 : 102,110.11 = 18,151.73 : x
  2. Step 2: Convert to fraction form
    68,071.18/102,110.11 = 18,151.73/x
  3. Step 3: Cross multiply
    68,071.18x = 102,110.11 × 18,151.73
  4. Step 4: Simplify right side
    68,071.18x = 1,853,474,636.44
  5. Step 5: Solve for x
    x = 1,853,474,636.44/68,071.18
  6. Step 6: Final answer
    x = 27,228.48

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Why These Related Problems?

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