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Finding the Fourth Proportional to 125,708, 188,525.09 and 36,940.40

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Solution

The fourth proportional to 125,708, 188,525.09 and 36,940.40 is: 55,399.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,708 : 188,525.09 = 36,940.40 : x
  2. Step 2: Convert to fraction form
    125,708/188,525.09 = 36,940.40/x
  3. Step 3: Cross multiply
    125,708x = 188,525.09 × 36,940.40
  4. Step 4: Simplify right side
    125,708x = 6,964,192,234.64
  5. Step 5: Solve for x
    x = 6,964,192,234.64/125,708
  6. Step 6: Final answer
    x = 55,399.75

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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.