Home / 107,724.80-161,595.30-28,837.28

Finding the Fourth Proportional to 107,724.80, 161,595.30 and 28,837.28

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Solution

The fourth proportional to 107,724.80, 161,595.30 and 28,837.28 is: 43,258.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,724.80 : 161,595.30 = 28,837.28 : x
  2. Step 2: Convert to fraction form
    107,724.80/161,595.30 = 28,837.28/x
  3. Step 3: Cross multiply
    107,724.80x = 161,595.30 × 28,837.28
  4. Step 4: Simplify right side
    107,724.80x = 4,659,968,912.78
  5. Step 5: Solve for x
    x = 4,659,968,912.78/107,724.80
  6. Step 6: Final answer
    x = 43,258.09

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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.