Home / 68,600.34-102,906.66-18,680.70

Finding the Fourth Proportional to 68,600.34, 102,906.66 and 18,680.70

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Solution

The fourth proportional to 68,600.34, 102,906.66 and 18,680.70 is: 28,022.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,600.34 : 102,906.66 = 18,680.70 : x
  2. Step 2: Convert to fraction form
    68,600.34/102,906.66 = 18,680.70/x
  3. Step 3: Cross multiply
    68,600.34x = 102,906.66 × 18,680.70
  4. Step 4: Simplify right side
    68,600.34x = 1,922,368,443.46
  5. Step 5: Solve for x
    x = 1,922,368,443.46/68,600.34
  6. Step 6: Final answer
    x = 28,022.72

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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.