Home / 107,861.20-161,753.40-48,725.20

Finding the Fourth Proportional to 107,861.20, 161,753.40 and 48,725.20

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Solution

The fourth proportional to 107,861.20, 161,753.40 and 48,725.20 is: 73,070.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,861.20 : 161,753.40 = 48,725.20 : x
  2. Step 2: Convert to fraction form
    107,861.20/161,753.40 = 48,725.20/x
  3. Step 3: Cross multiply
    107,861.20x = 161,753.40 × 48,725.20
  4. Step 4: Simplify right side
    107,861.20x = 7,881,466,765.68
  5. Step 5: Solve for x
    x = 7,881,466,765.68/107,861.20
  6. Step 6: Final answer
    x = 73,070.45

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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.