Home / 180,947.67-271,380.20-68,640.36

Finding the Fourth Proportional to 180,947.67, 271,380.20 and 68,640.36

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Solution

The fourth proportional to 180,947.67, 271,380.20 and 68,640.36 is: 102,944.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,947.67 : 271,380.20 = 68,640.36 : x
  2. Step 2: Convert to fraction form
    180,947.67/271,380.20 = 68,640.36/x
  3. Step 3: Cross multiply
    180,947.67x = 271,380.20 × 68,640.36
  4. Step 4: Simplify right side
    180,947.67x = 18,627,634,281.67
  5. Step 5: Solve for x
    x = 18,627,634,281.67/180,947.67
  6. Step 6: Final answer
    x = 102,944.87

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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.