Home / 204,712.37-307,163.66-78,310.83

Finding the Fourth Proportional to 204,712.37, 307,163.66 and 78,310.83

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Solution

The fourth proportional to 204,712.37, 307,163.66 and 78,310.83 is: 117,502.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,712.37 : 307,163.66 = 78,310.83 : x
  2. Step 2: Convert to fraction form
    204,712.37/307,163.66 = 78,310.83/x
  3. Step 3: Cross multiply
    204,712.37x = 307,163.66 × 78,310.83
  4. Step 4: Simplify right side
    204,712.37x = 24,054,239,233.07
  5. Step 5: Solve for x
    x = 24,054,239,233.07/204,712.37
  6. Step 6: Final answer
    x = 117,502.62

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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.