Home / 87,923.80-131,885.70-82,739.80

Finding the Fourth Proportional to 87,923.80, 131,885.70 and 82,739.80

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Solution

The fourth proportional to 87,923.80, 131,885.70 and 82,739.80 is: 124,109.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,923.80 : 131,885.70 = 82,739.80 : x
  2. Step 2: Convert to fraction form
    87,923.80/131,885.70 = 82,739.80/x
  3. Step 3: Cross multiply
    87,923.80x = 131,885.70 × 82,739.80
  4. Step 4: Simplify right side
    87,923.80x = 10,912,196,440.86
  5. Step 5: Solve for x
    x = 10,912,196,440.86/87,923.80
  6. Step 6: Final answer
    x = 124,109.70

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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.