Home / 68,155.77-102,234.60-21,408.69

Finding the Fourth Proportional to 68,155.77, 102,234.60 and 21,408.69

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Solution

The fourth proportional to 68,155.77, 102,234.60 and 21,408.69 is: 32,113.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,155.77 : 102,234.60 = 21,408.69 : x
  2. Step 2: Convert to fraction form
    68,155.77/102,234.60 = 21,408.69/x
  3. Step 3: Cross multiply
    68,155.77x = 102,234.60 × 21,408.69
  4. Step 4: Simplify right side
    68,155.77x = 2,188,708,858.67
  5. Step 5: Solve for x
    x = 2,188,708,858.67/68,155.77
  6. Step 6: Final answer
    x = 32,113.33

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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.