Home / 130,867.56-195,913.82-80,786.63

Finding the Fourth Proportional to 130,867.56, 195,913.82 and 80,786.63

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Solution

The fourth proportional to 130,867.56, 195,913.82 and 80,786.63 is: 120,940.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,867.56 : 195,913.82 = 80,786.63 : x
  2. Step 2: Convert to fraction form
    130,867.56/195,913.82 = 80,786.63/x
  3. Step 3: Cross multiply
    130,867.56x = 195,913.82 × 80,786.63
  4. Step 4: Simplify right side
    130,867.56x = 15,827,217,979.98
  5. Step 5: Solve for x
    x = 15,827,217,979.98/130,867.56
  6. Step 6: Final answer
    x = 120,940.73

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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.