Home / 345,176.20-517,786.78-108,528.04

Finding the Fourth Proportional to 345,176.20, 517,786.78 and 108,528.04

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Solution

The fourth proportional to 345,176.20, 517,786.78 and 108,528.04 is: 162,799.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,176.20 : 517,786.78 = 108,528.04 : x
  2. Step 2: Convert to fraction form
    345,176.20/517,786.78 = 108,528.04/x
  3. Step 3: Cross multiply
    345,176.20x = 517,786.78 × 108,528.04
  4. Step 4: Simplify right side
    345,176.20x = 56,194,384,371.31
  5. Step 5: Solve for x
    x = 56,194,384,371.31/345,176.20
  6. Step 6: Final answer
    x = 162,799.13

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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.