Home / 138,889.74-208,291.66-50,131.96

Finding the Fourth Proportional to 138,889.74, 208,291.66 and 50,131.96

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Solution

The fourth proportional to 138,889.74, 208,291.66 and 50,131.96 is: 75,182.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,889.74 : 208,291.66 = 50,131.96 : x
  2. Step 2: Convert to fraction form
    138,889.74/208,291.66 = 50,131.96/x
  3. Step 3: Cross multiply
    138,889.74x = 208,291.66 × 50,131.96
  4. Step 4: Simplify right side
    138,889.74x = 10,442,069,167.45
  5. Step 5: Solve for x
    x = 10,442,069,167.45/138,889.74
  6. Step 6: Final answer
    x = 75,182.44

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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.