Home / 165,318.85-228,144.73-100,791.82

Finding the Fourth Proportional to 165,318.85, 228,144.73 and 100,791.82

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Solution

The fourth proportional to 165,318.85, 228,144.73 and 100,791.82 is: 139,095.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,318.85 : 228,144.73 = 100,791.82 : x
  2. Step 2: Convert to fraction form
    165,318.85/228,144.73 = 100,791.82/x
  3. Step 3: Cross multiply
    165,318.85x = 228,144.73 × 100,791.82
  4. Step 4: Simplify right side
    165,318.85x = 22,995,121,737.77
  5. Step 5: Solve for x
    x = 22,995,121,737.77/165,318.85
  6. Step 6: Final answer
    x = 139,095.58

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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.