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Finding the Fourth Proportional to 125,916, 188,881.42 and 35,951.80

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Solution

The fourth proportional to 125,916, 188,881.42 and 35,951.80 is: 53,929.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,916 : 188,881.42 = 35,951.80 : x
  2. Step 2: Convert to fraction form
    125,916/188,881.42 = 35,951.80/x
  3. Step 3: Cross multiply
    125,916x = 188,881.42 × 35,951.80
  4. Step 4: Simplify right side
    125,916x = 6,790,627,035.56
  5. Step 5: Solve for x
    x = 6,790,627,035.56/125,916
  6. Step 6: Final answer
    x = 53,929.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.