Home / 165,725.19-228,700.80-90,273.69

Finding the Fourth Proportional to 165,725.19, 228,700.80 and 90,273.69

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Solution

The fourth proportional to 165,725.19, 228,700.80 and 90,273.69 is: 124,577.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,725.19 : 228,700.80 = 90,273.69 : x
  2. Step 2: Convert to fraction form
    165,725.19/228,700.80 = 90,273.69/x
  3. Step 3: Cross multiply
    165,725.19x = 228,700.80 × 90,273.69
  4. Step 4: Simplify right side
    165,725.19x = 20,645,665,121.95
  5. Step 5: Solve for x
    x = 20,645,665,121.95/165,725.19
  6. Step 6: Final answer
    x = 124,577.71

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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.