Home / 166,431.38-229,675.30-90,979.88

Finding the Fourth Proportional to 166,431.38, 229,675.30 and 90,979.88

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Solution

The fourth proportional to 166,431.38, 229,675.30 and 90,979.88 is: 125,552.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,431.38 : 229,675.30 = 90,979.88 : x
  2. Step 2: Convert to fraction form
    166,431.38/229,675.30 = 90,979.88/x
  3. Step 3: Cross multiply
    166,431.38x = 229,675.30 × 90,979.88
  4. Step 4: Simplify right side
    166,431.38x = 20,895,829,857.14
  5. Step 5: Solve for x
    x = 20,895,829,857.14/166,431.38
  6. Step 6: Final answer
    x = 125,552.23

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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.