Home / 138,889.24-208,334.12-50,205.36

Finding the Fourth Proportional to 138,889.24, 208,334.12 and 50,205.36

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Solution

The fourth proportional to 138,889.24, 208,334.12 and 50,205.36 is: 75,308.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,889.24 : 208,334.12 = 50,205.36 : x
  2. Step 2: Convert to fraction form
    138,889.24/208,334.12 = 50,205.36/x
  3. Step 3: Cross multiply
    138,889.24x = 208,334.12 × 50,205.36
  4. Step 4: Simplify right side
    138,889.24x = 10,459,489,494.88
  5. Step 5: Solve for x
    x = 10,459,489,494.88/138,889.24
  6. Step 6: Final answer
    x = 75,308.13

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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.