Home / 215,577.12-297,505.68-120,083.88

Finding the Fourth Proportional to 215,577.12, 297,505.68 and 120,083.88

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Solution

The fourth proportional to 215,577.12, 297,505.68 and 120,083.88 is: 165,720.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,577.12 : 297,505.68 = 120,083.88 : x
  2. Step 2: Convert to fraction form
    215,577.12/297,505.68 = 120,083.88/x
  3. Step 3: Cross multiply
    215,577.12x = 297,505.68 × 120,083.88
  4. Step 4: Simplify right side
    215,577.12x = 35,725,636,376.44
  5. Step 5: Solve for x
    x = 35,725,636,376.44/215,577.12
  6. Step 6: Final answer
    x = 165,720.91

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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.