Home / 138,642.12-207,961.34-33,460.60

Finding the Fourth Proportional to 138,642.12, 207,961.34 and 33,460.60

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Solution

The fourth proportional to 138,642.12, 207,961.34 and 33,460.60 is: 50,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,642.12 : 207,961.34 = 33,460.60 : x
  2. Step 2: Convert to fraction form
    138,642.12/207,961.34 = 33,460.60/x
  3. Step 3: Cross multiply
    138,642.12x = 207,961.34 × 33,460.60
  4. Step 4: Simplify right side
    138,642.12x = 6,958,511,213.20
  5. Step 5: Solve for x
    x = 6,958,511,213.20/138,642.12
  6. Step 6: Final answer
    x = 50,190.46

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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.