Home / 106,105.20-146,376.09-63,589.92

Finding the Fourth Proportional to 106,105.20, 146,376.09 and 63,589.92

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Solution

The fourth proportional to 106,105.20, 146,376.09 and 63,589.92 is: 87,724.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,105.20 : 146,376.09 = 63,589.92 : x
  2. Step 2: Convert to fraction form
    106,105.20/146,376.09 = 63,589.92/x
  3. Step 3: Cross multiply
    106,105.20x = 146,376.09 × 63,589.92
  4. Step 4: Simplify right side
    106,105.20x = 9,308,043,853.01
  5. Step 5: Solve for x
    x = 9,308,043,853.01/106,105.20
  6. Step 6: Final answer
    x = 87,724.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.