Home / 414,101.27-621,152.87-125,915.56

Finding the Fourth Proportional to 414,101.27, 621,152.87 and 125,915.56

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Solution

The fourth proportional to 414,101.27, 621,152.87 and 125,915.56 is: 188,873.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,101.27 : 621,152.87 = 125,915.56 : x
  2. Step 2: Convert to fraction form
    414,101.27/621,152.87 = 125,915.56/x
  3. Step 3: Cross multiply
    414,101.27x = 621,152.87 × 125,915.56
  4. Step 4: Simplify right side
    414,101.27x = 78,212,809,918.78
  5. Step 5: Solve for x
    x = 78,212,809,918.78/414,101.27
  6. Step 6: Final answer
    x = 188,873.63

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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.