Home / 215,577.20-297,505.68-120,083.92

Finding the Fourth Proportional to 215,577.20, 297,505.68 and 120,083.92

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Solution

The fourth proportional to 215,577.20, 297,505.68 and 120,083.92 is: 165,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,577.20 : 297,505.68 = 120,083.92 : x
  2. Step 2: Convert to fraction form
    215,577.20/297,505.68 = 120,083.92/x
  3. Step 3: Cross multiply
    215,577.20x = 297,505.68 × 120,083.92
  4. Step 4: Simplify right side
    215,577.20x = 35,725,648,276.67
  5. Step 5: Solve for x
    x = 35,725,648,276.67/215,577.20
  6. Step 6: Final answer
    x = 165,720.90

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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.