Home / 108,619.45-162,906.91-41,128.20

Finding the Fourth Proportional to 108,619.45, 162,906.91 and 41,128.20

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Solution

The fourth proportional to 108,619.45, 162,906.91 and 41,128.20 is: 61,683.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,619.45 : 162,906.91 = 41,128.20 : x
  2. Step 2: Convert to fraction form
    108,619.45/162,906.91 = 41,128.20/x
  3. Step 3: Cross multiply
    108,619.45x = 162,906.91 × 41,128.20
  4. Step 4: Simplify right side
    108,619.45x = 6,700,067,975.86
  5. Step 5: Solve for x
    x = 6,700,067,975.86/108,619.45
  6. Step 6: Final answer
    x = 61,683.87

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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.