Home / 168,128.68-252,229.92-49,809.28

Finding the Fourth Proportional to 168,128.68, 252,229.92 and 49,809.28

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Solution

The fourth proportional to 168,128.68, 252,229.92 and 49,809.28 is: 74,724.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,128.68 : 252,229.92 = 49,809.28 : x
  2. Step 2: Convert to fraction form
    168,128.68/252,229.92 = 49,809.28/x
  3. Step 3: Cross multiply
    168,128.68x = 252,229.92 × 49,809.28
  4. Step 4: Simplify right side
    168,128.68x = 12,563,390,709.66
  5. Step 5: Solve for x
    x = 12,563,390,709.66/168,128.68
  6. Step 6: Final answer
    x = 74,724.85

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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.