Home / 138,924.92-208,387.38-50,178.08

Finding the Fourth Proportional to 138,924.92, 208,387.38 and 50,178.08

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Solution

The fourth proportional to 138,924.92, 208,387.38 and 50,178.08 is: 75,267.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,924.92 : 208,387.38 = 50,178.08 : x
  2. Step 2: Convert to fraction form
    138,924.92/208,387.38 = 50,178.08/x
  3. Step 3: Cross multiply
    138,924.92x = 208,387.38 × 50,178.08
  4. Step 4: Simplify right side
    138,924.92x = 10,456,478,624.63
  5. Step 5: Solve for x
    x = 10,456,478,624.63/138,924.92
  6. Step 6: Final answer
    x = 75,267.12

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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.