Home / 414,134.96-621,184.65-129,819.14

Finding the Fourth Proportional to 414,134.96, 621,184.65 and 129,819.14

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Solution

The fourth proportional to 414,134.96, 621,184.65 and 129,819.14 is: 194,723.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,134.96 : 621,184.65 = 129,819.14 : x
  2. Step 2: Convert to fraction form
    414,134.96/621,184.65 = 129,819.14/x
  3. Step 3: Cross multiply
    414,134.96x = 621,184.65 × 129,819.14
  4. Step 4: Simplify right side
    414,134.96x = 80,641,655,780.90
  5. Step 5: Solve for x
    x = 80,641,655,780.90/414,134.96
  6. Step 6: Final answer
    x = 194,723.13

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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.