Home / 87,707.20-131,496-72,855.04

Finding the Fourth Proportional to 87,707.20, 131,496 and 72,855.04

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Solution

The fourth proportional to 87,707.20, 131,496 and 72,855.04 is: 109,228.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,707.20 : 131,496 = 72,855.04 : x
  2. Step 2: Convert to fraction form
    87,707.20/131,496 = 72,855.04/x
  3. Step 3: Cross multiply
    87,707.20x = 131,496 × 72,855.04
  4. Step 4: Simplify right side
    87,707.20x = 9,580,146,339.84
  5. Step 5: Solve for x
    x = 9,580,146,339.84/87,707.20
  6. Step 6: Final answer
    x = 109,228.73

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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.