Home / 131,727.77-197,167.38-86,786.24

Finding the Fourth Proportional to 131,727.77, 197,167.38 and 86,786.24

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Solution

The fourth proportional to 131,727.77, 197,167.38 and 86,786.24 is: 129,899.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,727.77 : 197,167.38 = 86,786.24 : x
  2. Step 2: Convert to fraction form
    131,727.77/197,167.38 = 86,786.24/x
  3. Step 3: Cross multiply
    131,727.77x = 197,167.38 × 86,786.24
  4. Step 4: Simplify right side
    131,727.77x = 17,111,414,575.01
  5. Step 5: Solve for x
    x = 17,111,414,575.01/131,727.77
  6. Step 6: Final answer
    x = 129,899.83

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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.