Home / 133,112.88-199,907.28-127,761.60

Finding the Fourth Proportional to 133,112.88, 199,907.28 and 127,761.60

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Solution

The fourth proportional to 133,112.88, 199,907.28 and 127,761.60 is: 191,870.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,112.88 : 199,907.28 = 127,761.60 : x
  2. Step 2: Convert to fraction form
    133,112.88/199,907.28 = 127,761.60/x
  3. Step 3: Cross multiply
    133,112.88x = 199,907.28 × 127,761.60
  4. Step 4: Simplify right side
    133,112.88x = 25,540,473,944.45
  5. Step 5: Solve for x
    x = 25,540,473,944.45/133,112.88
  6. Step 6: Final answer
    x = 191,870.79

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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.