Home / 156,198.62-215,555.10-84,579.24

Finding the Fourth Proportional to 156,198.62, 215,555.10 and 84,579.24

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Solution

The fourth proportional to 156,198.62, 215,555.10 and 84,579.24 is: 116,719.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,198.62 : 215,555.10 = 84,579.24 : x
  2. Step 2: Convert to fraction form
    156,198.62/215,555.10 = 84,579.24/x
  3. Step 3: Cross multiply
    156,198.62x = 215,555.10 × 84,579.24
  4. Step 4: Simplify right side
    156,198.62x = 18,231,486,536.12
  5. Step 5: Solve for x
    x = 18,231,486,536.12/156,198.62
  6. Step 6: Final answer
    x = 116,719.90

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1.5x scale

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.