Home / 138,863.73-208,252.65-50,105.97

Finding the Fourth Proportional to 138,863.73, 208,252.65 and 50,105.97

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Solution

The fourth proportional to 138,863.73, 208,252.65 and 50,105.97 is: 75,143.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,863.73 : 208,252.65 = 50,105.97 : x
  2. Step 2: Convert to fraction form
    138,863.73/208,252.65 = 50,105.97/x
  3. Step 3: Cross multiply
    138,863.73x = 208,252.65 × 50,105.97
  4. Step 4: Simplify right side
    138,863.73x = 10,434,701,033.32
  5. Step 5: Solve for x
    x = 10,434,701,033.32/138,863.73
  6. Step 6: Final answer
    x = 75,143.46

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1.5x scale

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.