Home / 87,842.06-131,894.30-86,529.86

Finding the Fourth Proportional to 87,842.06, 131,894.30 and 86,529.86

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Solution

The fourth proportional to 87,842.06, 131,894.30 and 86,529.86 is: 129,924.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,842.06 : 131,894.30 = 86,529.86 : x
  2. Step 2: Convert to fraction form
    87,842.06/131,894.30 = 86,529.86/x
  3. Step 3: Cross multiply
    87,842.06x = 131,894.30 × 86,529.86
  4. Step 4: Simplify right side
    87,842.06x = 11,412,794,870.65
  5. Step 5: Solve for x
    x = 11,412,794,870.65/87,842.06
  6. Step 6: Final answer
    x = 129,924.04

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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.