Home / 136,704.36-187,286-131,591.79

Finding the Fourth Proportional to 136,704.36, 187,286 and 131,591.79

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Solution

The fourth proportional to 136,704.36, 187,286 and 131,591.79 is: 180,281.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,704.36 : 187,286 = 131,591.79 : x
  2. Step 2: Convert to fraction form
    136,704.36/187,286 = 131,591.79/x
  3. Step 3: Cross multiply
    136,704.36x = 187,286 × 131,591.79
  4. Step 4: Simplify right side
    136,704.36x = 24,645,299,981.94
  5. Step 5: Solve for x
    x = 24,645,299,981.94/136,704.36
  6. Step 6: Final answer
    x = 180,281.74

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.