Home / 132,133.92-198,256.32-82,255.68

Finding the Fourth Proportional to 132,133.92, 198,256.32 and 82,255.68

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Solution

The fourth proportional to 132,133.92, 198,256.32 and 82,255.68 is: 123,418.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,133.92 : 198,256.32 = 82,255.68 : x
  2. Step 2: Convert to fraction form
    132,133.92/198,256.32 = 82,255.68/x
  3. Step 3: Cross multiply
    132,133.92x = 198,256.32 × 82,255.68
  4. Step 4: Simplify right side
    132,133.92x = 16,307,708,415.90
  5. Step 5: Solve for x
    x = 16,307,708,415.90/132,133.92
  6. Step 6: Final answer
    x = 123,418.03

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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.