Home / 156,786.68-216,455.39-103,227.38

Finding the Fourth Proportional to 156,786.68, 216,455.39 and 103,227.38

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Solution

The fourth proportional to 156,786.68, 216,455.39 and 103,227.38 is: 142,512.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,786.68 : 216,455.39 = 103,227.38 : x
  2. Step 2: Convert to fraction form
    156,786.68/216,455.39 = 103,227.38/x
  3. Step 3: Cross multiply
    156,786.68x = 216,455.39 × 103,227.38
  4. Step 4: Simplify right side
    156,786.68x = 22,344,121,198.16
  5. Step 5: Solve for x
    x = 22,344,121,198.16/156,786.68
  6. Step 6: Final answer
    x = 142,512.88

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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.