Home / 87,703.56-131,554.08-82,099.98

Finding the Fourth Proportional to 87,703.56, 131,554.08 and 82,099.98

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Solution

The fourth proportional to 87,703.56, 131,554.08 and 82,099.98 is: 123,148.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,703.56 : 131,554.08 = 82,099.98 : x
  2. Step 2: Convert to fraction form
    87,703.56/131,554.08 = 82,099.98/x
  3. Step 3: Cross multiply
    87,703.56x = 131,554.08 × 82,099.98
  4. Step 4: Simplify right side
    87,703.56x = 10,800,587,336.92
  5. Step 5: Solve for x
    x = 10,800,587,336.92/87,703.56
  6. Step 6: Final answer
    x = 123,148.79

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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.