Home / 108,728.20-162,873.60-73,298.80

Finding the Fourth Proportional to 108,728.20, 162,873.60 and 73,298.80

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Solution

The fourth proportional to 108,728.20, 162,873.60 and 73,298.80 is: 109,800.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,728.20 : 162,873.60 = 73,298.80 : x
  2. Step 2: Convert to fraction form
    108,728.20/162,873.60 = 73,298.80/x
  3. Step 3: Cross multiply
    108,728.20x = 162,873.60 × 73,298.80
  4. Step 4: Simplify right side
    108,728.20x = 11,938,439,431.68
  5. Step 5: Solve for x
    x = 11,938,439,431.68/108,728.20
  6. Step 6: Final answer
    x = 109,800.76

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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.