Home / 136,441.36-188,286.24-76,011.92

Finding the Fourth Proportional to 136,441.36, 188,286.24 and 76,011.92

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Solution

The fourth proportional to 136,441.36, 188,286.24 and 76,011.92 is: 104,894.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,441.36 : 188,286.24 = 76,011.92 : x
  2. Step 2: Convert to fraction form
    136,441.36/188,286.24 = 76,011.92/x
  3. Step 3: Cross multiply
    136,441.36x = 188,286.24 × 76,011.92
  4. Step 4: Simplify right side
    136,441.36x = 14,311,998,611.98
  5. Step 5: Solve for x
    x = 14,311,998,611.98/136,441.36
  6. Step 6: Final answer
    x = 104,894.87

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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.