Home / 136,251.75-188,027.43-76,635.75

Finding the Fourth Proportional to 136,251.75, 188,027.43 and 76,635.75

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Solution

The fourth proportional to 136,251.75, 188,027.43 and 76,635.75 is: 105,757.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,251.75 : 188,027.43 = 76,635.75 : x
  2. Step 2: Convert to fraction form
    136,251.75/188,027.43 = 76,635.75/x
  3. Step 3: Cross multiply
    136,251.75x = 188,027.43 × 76,635.75
  4. Step 4: Simplify right side
    136,251.75x = 14,409,623,118.62
  5. Step 5: Solve for x
    x = 14,409,623,118.62/136,251.75
  6. Step 6: Final answer
    x = 105,757.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.