Home / 108,553.17-149,854.68-72,766.56

Finding the Fourth Proportional to 108,553.17, 149,854.68 and 72,766.56

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Solution

The fourth proportional to 108,553.17, 149,854.68 and 72,766.56 is: 100,452.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,553.17 : 149,854.68 = 72,766.56 : x
  2. Step 2: Convert to fraction form
    108,553.17/149,854.68 = 72,766.56/x
  3. Step 3: Cross multiply
    108,553.17x = 149,854.68 × 72,766.56
  4. Step 4: Simplify right side
    108,553.17x = 10,904,409,563.50
  5. Step 5: Solve for x
    x = 10,904,409,563.50/108,553.17
  6. Step 6: Final answer
    x = 100,452.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.