Home / 107,961.20-161,903.40-48,825.20

Finding the Fourth Proportional to 107,961.20, 161,903.40 and 48,825.20

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Solution

The fourth proportional to 107,961.20, 161,903.40 and 48,825.20 is: 73,220.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,961.20 : 161,903.40 = 48,825.20 : x
  2. Step 2: Convert to fraction form
    107,961.20/161,903.40 = 48,825.20/x
  3. Step 3: Cross multiply
    107,961.20x = 161,903.40 × 48,825.20
  4. Step 4: Simplify right side
    107,961.20x = 7,904,965,885.68
  5. Step 5: Solve for x
    x = 7,904,965,885.68/107,961.20
  6. Step 6: Final answer
    x = 73,220.43

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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.