Home / 345,929.86-518,844.58-132,751.43

Finding the Fourth Proportional to 345,929.86, 518,844.58 and 132,751.43

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Solution

The fourth proportional to 345,929.86, 518,844.58 and 132,751.43 is: 199,107.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,929.86 : 518,844.58 = 132,751.43 : x
  2. Step 2: Convert to fraction form
    345,929.86/518,844.58 = 132,751.43/x
  3. Step 3: Cross multiply
    345,929.86x = 518,844.58 × 132,751.43
  4. Step 4: Simplify right side
    345,929.86x = 68,877,359,942.75
  5. Step 5: Solve for x
    x = 68,877,359,942.75/345,929.86
  6. Step 6: Final answer
    x = 199,107.88

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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.