Home / 168,154.52-231,921.92-107,730.74

Finding the Fourth Proportional to 168,154.52, 231,921.92 and 107,730.74

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Solution

The fourth proportional to 168,154.52, 231,921.92 and 107,730.74 is: 148,584.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,154.52 : 231,921.92 = 107,730.74 : x
  2. Step 2: Convert to fraction form
    168,154.52/231,921.92 = 107,730.74/x
  3. Step 3: Cross multiply
    168,154.52x = 231,921.92 × 107,730.74
  4. Step 4: Simplify right side
    168,154.52x = 24,985,120,063.82
  5. Step 5: Solve for x
    x = 24,985,120,063.82/168,154.52
  6. Step 6: Final answer
    x = 148,584.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.