Home / 168,819.10-253,228.65-68,979.20

Finding the Fourth Proportional to 168,819.10, 253,228.65 and 68,979.20

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Solution

The fourth proportional to 168,819.10, 253,228.65 and 68,979.20 is: 103,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,819.10 : 253,228.65 = 68,979.20 : x
  2. Step 2: Convert to fraction form
    168,819.10/253,228.65 = 68,979.20/x
  3. Step 3: Cross multiply
    168,819.10x = 253,228.65 × 68,979.20
  4. Step 4: Simplify right side
    168,819.10x = 17,467,509,694.08
  5. Step 5: Solve for x
    x = 17,467,509,694.08/168,819.10
  6. Step 6: Final answer
    x = 103,468.80

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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.