Home / 87,499.32-120,638.07-67,105.14

Finding the Fourth Proportional to 87,499.32, 120,638.07 and 67,105.14

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Solution

The fourth proportional to 87,499.32, 120,638.07 and 67,105.14 is: 92,519.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,499.32 : 120,638.07 = 67,105.14 : x
  2. Step 2: Convert to fraction form
    87,499.32/120,638.07 = 67,105.14/x
  3. Step 3: Cross multiply
    87,499.32x = 120,638.07 × 67,105.14
  4. Step 4: Simplify right side
    87,499.32x = 8,095,434,576.68
  5. Step 5: Solve for x
    x = 8,095,434,576.68/87,499.32
  6. Step 6: Final answer
    x = 92,519.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.