Home / 165,243.11-228,036.85-89,791.61

Finding the Fourth Proportional to 165,243.11, 228,036.85 and 89,791.61

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Solution

The fourth proportional to 165,243.11, 228,036.85 and 89,791.61 is: 123,913.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,243.11 : 228,036.85 = 89,791.61 : x
  2. Step 2: Convert to fraction form
    165,243.11/228,036.85 = 89,791.61/x
  3. Step 3: Cross multiply
    165,243.11x = 228,036.85 × 89,791.61
  4. Step 4: Simplify right side
    165,243.11x = 20,475,794,536.17
  5. Step 5: Solve for x
    x = 20,475,794,536.17/165,243.11
  6. Step 6: Final answer
    x = 123,913.16

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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.