Home / 151,628.22-209,180.34-91,163.88

Finding the Fourth Proportional to 151,628.22, 209,180.34 and 91,163.88

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Solution

The fourth proportional to 151,628.22, 209,180.34 and 91,163.88 is: 125,766.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,628.22 : 209,180.34 = 91,163.88 : x
  2. Step 2: Convert to fraction form
    151,628.22/209,180.34 = 91,163.88/x
  3. Step 3: Cross multiply
    151,628.22x = 209,180.34 × 91,163.88
  4. Step 4: Simplify right side
    151,628.22x = 19,069,691,414.12
  5. Step 5: Solve for x
    x = 19,069,691,414.12/151,628.22
  6. Step 6: Final answer
    x = 125,766.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.