Home / 414,291.56-621,437.94-126,105.71

Finding the Fourth Proportional to 414,291.56, 621,437.94 and 126,105.71

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Solution

The fourth proportional to 414,291.56, 621,437.94 and 126,105.71 is: 189,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,291.56 : 621,437.94 = 126,105.71 : x
  2. Step 2: Convert to fraction form
    414,291.56/621,437.94 = 126,105.71/x
  3. Step 3: Cross multiply
    414,291.56x = 621,437.94 × 126,105.71
  4. Step 4: Simplify right side
    414,291.56x = 78,366,869,537.45
  5. Step 5: Solve for x
    x = 78,366,869,537.45/414,291.56
  6. Step 6: Final answer
    x = 189,158.74

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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.