Home / 165,837.38-228,855.38-90,385.88

Finding the Fourth Proportional to 165,837.38, 228,855.38 and 90,385.88

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Solution

The fourth proportional to 165,837.38, 228,855.38 and 90,385.88 is: 124,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,837.38 : 228,855.38 = 90,385.88 : x
  2. Step 2: Convert to fraction form
    165,837.38/228,855.38 = 90,385.88/x
  3. Step 3: Cross multiply
    165,837.38x = 228,855.38 × 90,385.88
  4. Step 4: Simplify right side
    165,837.38x = 20,685,293,317.83
  5. Step 5: Solve for x
    x = 20,685,293,317.83/165,837.38
  6. Step 6: Final answer
    x = 124,732.40

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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.