Home / 133,964.20-184,782.18-86,141.80

Finding the Fourth Proportional to 133,964.20, 184,782.18 and 86,141.80

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Solution

The fourth proportional to 133,964.20, 184,782.18 and 86,141.80 is: 118,818.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,964.20 : 184,782.18 = 86,141.80 : x
  2. Step 2: Convert to fraction form
    133,964.20/184,782.18 = 86,141.80/x
  3. Step 3: Cross multiply
    133,964.20x = 184,782.18 × 86,141.80
  4. Step 4: Simplify right side
    133,964.20x = 15,917,469,593.12
  5. Step 5: Solve for x
    x = 15,917,469,593.12/133,964.20
  6. Step 6: Final answer
    x = 118,818.83

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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.