Home / 414,137.96-621,189.14-129,822.14

Finding the Fourth Proportional to 414,137.96, 621,189.14 and 129,822.14

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Solution

The fourth proportional to 414,137.96, 621,189.14 and 129,822.14 is: 194,727.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,137.96 : 621,189.14 = 129,822.14 : x
  2. Step 2: Convert to fraction form
    414,137.96/621,189.14 = 129,822.14/x
  3. Step 3: Cross multiply
    414,137.96x = 621,189.14 × 129,822.14
  4. Step 4: Simplify right side
    414,137.96x = 80,644,103,499.56
  5. Step 5: Solve for x
    x = 80,644,103,499.56/414,137.96
  6. Step 6: Final answer
    x = 194,727.63

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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.