Home / 138,723.79-207,960.78-49,914.85

Finding the Fourth Proportional to 138,723.79, 207,960.78 and 49,914.85

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Solution

The fourth proportional to 138,723.79, 207,960.78 and 49,914.85 is: 74,827.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,723.79 : 207,960.78 = 49,914.85 : x
  2. Step 2: Convert to fraction form
    138,723.79/207,960.78 = 49,914.85/x
  3. Step 3: Cross multiply
    138,723.79x = 207,960.78 × 49,914.85
  4. Step 4: Simplify right side
    138,723.79x = 10,380,330,619.68
  5. Step 5: Solve for x
    x = 10,380,330,619.68/138,723.79
  6. Step 6: Final answer
    x = 74,827.33

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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.