Home / 107,724.30-161,594.55-28,836.78

Finding the Fourth Proportional to 107,724.30, 161,594.55 and 28,836.78

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Solution

The fourth proportional to 107,724.30, 161,594.55 and 28,836.78 is: 43,257.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,724.30 : 161,594.55 = 28,836.78 : x
  2. Step 2: Convert to fraction form
    107,724.30/161,594.55 = 28,836.78/x
  3. Step 3: Cross multiply
    107,724.30x = 161,594.55 × 28,836.78
  4. Step 4: Simplify right side
    107,724.30x = 4,659,866,487.55
  5. Step 5: Solve for x
    x = 4,659,866,487.55/107,724.30
  6. Step 6: Final answer
    x = 43,257.34

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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.