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Finding the Fourth Proportional to 125,489.85, 188,221 and 36,744.22

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Solution

The fourth proportional to 125,489.85, 188,221 and 36,744.22 is: 55,112.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,489.85 : 188,221 = 36,744.22 : x
  2. Step 2: Convert to fraction form
    125,489.85/188,221 = 36,744.22/x
  3. Step 3: Cross multiply
    125,489.85x = 188,221 × 36,744.22
  4. Step 4: Simplify right side
    125,489.85x = 6,916,033,832.62
  5. Step 5: Solve for x
    x = 6,916,033,832.62/125,489.85
  6. Step 6: Final answer
    x = 55,112.30

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1.5x scale

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.