Home / 133,204.21-199,806.32-54,324.61

Finding the Fourth Proportional to 133,204.21, 199,806.32 and 54,324.61

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Solution

The fourth proportional to 133,204.21, 199,806.32 and 54,324.61 is: 81,486.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,204.21 : 199,806.32 = 54,324.61 : x
  2. Step 2: Convert to fraction form
    133,204.21/199,806.32 = 54,324.61/x
  3. Step 3: Cross multiply
    133,204.21x = 199,806.32 × 54,324.61
  4. Step 4: Simplify right side
    133,204.21x = 10,854,400,137.91
  5. Step 5: Solve for x
    x = 10,854,400,137.91/133,204.21
  6. Step 6: Final answer
    x = 81,486.92

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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.