Home / 345,930.86-518,846.08-132,752.43

Finding the Fourth Proportional to 345,930.86, 518,846.08 and 132,752.43

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Solution

The fourth proportional to 345,930.86, 518,846.08 and 132,752.43 is: 199,109.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,930.86 : 518,846.08 = 132,752.43 : x
  2. Step 2: Convert to fraction form
    345,930.86/518,846.08 = 132,752.43/x
  3. Step 3: Cross multiply
    345,930.86x = 518,846.08 × 132,752.43
  4. Step 4: Simplify right side
    345,930.86x = 68,878,077,915.97
  5. Step 5: Solve for x
    x = 68,878,077,915.97/345,930.86
  6. Step 6: Final answer
    x = 199,109.38

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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.