Home / 166,979.88-230,316.62-103,279.86

Finding the Fourth Proportional to 166,979.88, 230,316.62 and 103,279.86

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Solution

The fourth proportional to 166,979.88, 230,316.62 and 103,279.86 is: 142,454.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,979.88 : 230,316.62 = 103,279.86 : x
  2. Step 2: Convert to fraction form
    166,979.88/230,316.62 = 103,279.86/x
  3. Step 3: Cross multiply
    166,979.88x = 230,316.62 × 103,279.86
  4. Step 4: Simplify right side
    166,979.88x = 23,787,067,752.87
  5. Step 5: Solve for x
    x = 23,787,067,752.87/166,979.88
  6. Step 6: Final answer
    x = 142,454.69

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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.