Home / 138,843.29-208,221.81-50,085.24

Finding the Fourth Proportional to 138,843.29, 208,221.81 and 50,085.24

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Solution

The fourth proportional to 138,843.29, 208,221.81 and 50,085.24 is: 75,112.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,843.29 : 208,221.81 = 50,085.24 : x
  2. Step 2: Convert to fraction form
    138,843.29/208,221.81 = 50,085.24/x
  3. Step 3: Cross multiply
    138,843.29x = 208,221.81 × 50,085.24
  4. Step 4: Simplify right side
    138,843.29x = 10,428,839,327.08
  5. Step 5: Solve for x
    x = 10,428,839,327.08/138,843.29
  6. Step 6: Final answer
    x = 75,112.31

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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.