Home / 87,808.10-131,323.35-73,811.30

Finding the Fourth Proportional to 87,808.10, 131,323.35 and 73,811.30

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Solution

The fourth proportional to 87,808.10, 131,323.35 and 73,811.30 is: 110,390.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,808.10 : 131,323.35 = 73,811.30 : x
  2. Step 2: Convert to fraction form
    87,808.10/131,323.35 = 73,811.30/x
  3. Step 3: Cross multiply
    87,808.10x = 131,323.35 × 73,811.30
  4. Step 4: Simplify right side
    87,808.10x = 9,693,147,183.86
  5. Step 5: Solve for x
    x = 9,693,147,183.86/87,808.10
  6. Step 6: Final answer
    x = 110,390.13

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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.