Home / 117,694.28-162,416.78-87,614.12

Finding the Fourth Proportional to 117,694.28, 162,416.78 and 87,614.12

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Solution

The fourth proportional to 117,694.28, 162,416.78 and 87,614.12 is: 120,906.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,694.28 : 162,416.78 = 87,614.12 : x
  2. Step 2: Convert to fraction form
    117,694.28/162,416.78 = 87,614.12/x
  3. Step 3: Cross multiply
    117,694.28x = 162,416.78 × 87,614.12
  4. Step 4: Simplify right side
    117,694.28x = 14,230,003,252.93
  5. Step 5: Solve for x
    x = 14,230,003,252.93/117,694.28
  6. Step 6: Final answer
    x = 120,906.50

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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.