Home / 345,338.91-518,044.37-132,106.41

Finding the Fourth Proportional to 345,338.91, 518,044.37 and 132,106.41

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Solution

The fourth proportional to 345,338.91, 518,044.37 and 132,106.41 is: 198,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,338.91 : 518,044.37 = 132,106.41 : x
  2. Step 2: Convert to fraction form
    345,338.91/518,044.37 = 132,106.41/x
  3. Step 3: Cross multiply
    345,338.91x = 518,044.37 × 132,106.41
  4. Step 4: Simplify right side
    345,338.91x = 68,436,981,941.41
  5. Step 5: Solve for x
    x = 68,436,981,941.41/345,338.91
  6. Step 6: Final answer
    x = 198,173.39

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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.