Home / 345,628.60-518,393.68-108,940.52

Finding the Fourth Proportional to 345,628.60, 518,393.68 and 108,940.52

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Solution

The fourth proportional to 345,628.60, 518,393.68 and 108,940.52 is: 163,395.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,628.60 : 518,393.68 = 108,940.52 : x
  2. Step 2: Convert to fraction form
    345,628.60/518,393.68 = 108,940.52/x
  3. Step 3: Cross multiply
    345,628.60x = 518,393.68 × 108,940.52
  4. Step 4: Simplify right side
    345,628.60x = 56,474,077,063.91
  5. Step 5: Solve for x
    x = 56,474,077,063.91/345,628.60
  6. Step 6: Final answer
    x = 163,395.27

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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.