Home / 107,581.32-161,109-92,884.68

Finding the Fourth Proportional to 107,581.32, 161,109 and 92,884.68

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Solution

The fourth proportional to 107,581.32, 161,109 and 92,884.68 is: 139,099.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,581.32 : 161,109 = 92,884.68 : x
  2. Step 2: Convert to fraction form
    107,581.32/161,109 = 92,884.68/x
  3. Step 3: Cross multiply
    107,581.32x = 161,109 × 92,884.68
  4. Step 4: Simplify right side
    107,581.32x = 14,964,557,910.12
  5. Step 5: Solve for x
    x = 14,964,557,910.12/107,581.32
  6. Step 6: Final answer
    x = 139,099.97

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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.