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Finding the Fourth Proportional to 125,898.75, 188,819.10 and 35,939.79

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Solution

The fourth proportional to 125,898.75, 188,819.10 and 35,939.79 is: 53,901.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,898.75 : 188,819.10 = 35,939.79 : x
  2. Step 2: Convert to fraction form
    125,898.75/188,819.10 = 35,939.79/x
  3. Step 3: Cross multiply
    125,898.75x = 188,819.10 × 35,939.79
  4. Step 4: Simplify right side
    125,898.75x = 6,786,118,801.99
  5. Step 5: Solve for x
    x = 6,786,118,801.99/125,898.75
  6. Step 6: Final answer
    x = 53,901.40

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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.