Home / 138,845.28-208,224.80-50,087.24

Finding the Fourth Proportional to 138,845.28, 208,224.80 and 50,087.24

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Solution

The fourth proportional to 138,845.28, 208,224.80 and 50,087.24 is: 75,115.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,845.28 : 208,224.80 = 50,087.24 : x
  2. Step 2: Convert to fraction form
    138,845.28/208,224.80 = 50,087.24/x
  3. Step 3: Cross multiply
    138,845.28x = 208,224.80 × 50,087.24
  4. Step 4: Simplify right side
    138,845.28x = 10,429,405,531.55
  5. Step 5: Solve for x
    x = 10,429,405,531.55/138,845.28
  6. Step 6: Final answer
    x = 75,115.30

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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.