Home / 215,841.15-323,577.12-82,816.88

Finding the Fourth Proportional to 215,841.15, 323,577.12 and 82,816.88

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Solution

The fourth proportional to 215,841.15, 323,577.12 and 82,816.88 is: 124,154.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,841.15 : 323,577.12 = 82,816.88 : x
  2. Step 2: Convert to fraction form
    215,841.15/323,577.12 = 82,816.88/x
  3. Step 3: Cross multiply
    215,841.15x = 323,577.12 × 82,816.88
  4. Step 4: Simplify right side
    215,841.15x = 26,797,645,899.90
  5. Step 5: Solve for x
    x = 26,797,645,899.90/215,841.15
  6. Step 6: Final answer
    x = 124,154.48

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1.5x scale

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.