Home / 108,170.55-162,192.60-72,673.11

Finding the Fourth Proportional to 108,170.55, 162,192.60 and 72,673.11

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Solution

The fourth proportional to 108,170.55, 162,192.60 and 72,673.11 is: 108,967.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,170.55 : 162,192.60 = 72,673.11 : x
  2. Step 2: Convert to fraction form
    108,170.55/162,192.60 = 72,673.11/x
  3. Step 3: Cross multiply
    108,170.55x = 162,192.60 × 72,673.11
  4. Step 4: Simplify right side
    108,170.55x = 11,787,040,660.99
  5. Step 5: Solve for x
    x = 11,787,040,660.99/108,170.55
  6. Step 6: Final answer
    x = 108,967.19

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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.