Home / 107,769.68-161,676.12-45,440.72

Finding the Fourth Proportional to 107,769.68, 161,676.12 and 45,440.72

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Solution

The fourth proportional to 107,769.68, 161,676.12 and 45,440.72 is: 68,170.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,769.68 : 161,676.12 = 45,440.72 : x
  2. Step 2: Convert to fraction form
    107,769.68/161,676.12 = 45,440.72/x
  3. Step 3: Cross multiply
    107,769.68x = 161,676.12 × 45,440.72
  4. Step 4: Simplify right side
    107,769.68x = 7,346,679,299.61
  5. Step 5: Solve for x
    x = 7,346,679,299.61/107,769.68
  6. Step 6: Final answer
    x = 68,170.19

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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.