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Finding the Fourth Proportional to 126,003.60, 188,859.60 and 51,086.70

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Solution

The fourth proportional to 126,003.60, 188,859.60 and 51,086.70 is: 76,570.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,003.60 : 188,859.60 = 51,086.70 : x
  2. Step 2: Convert to fraction form
    126,003.60/188,859.60 = 51,086.70/x
  3. Step 3: Cross multiply
    126,003.60x = 188,859.60 × 51,086.70
  4. Step 4: Simplify right side
    126,003.60x = 9,648,213,727.32
  5. Step 5: Solve for x
    x = 9,648,213,727.32/126,003.60
  6. Step 6: Final answer
    x = 76,570.94

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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.