Home / 219,911.20-329,872.94-77,736.38

Finding the Fourth Proportional to 219,911.20, 329,872.94 and 77,736.38

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Solution

The fourth proportional to 219,911.20, 329,872.94 and 77,736.38 is: 116,606.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,911.20 : 329,872.94 = 77,736.38 : x
  2. Step 2: Convert to fraction form
    219,911.20/329,872.94 = 77,736.38/x
  3. Step 3: Cross multiply
    219,911.20x = 329,872.94 × 77,736.38
  4. Step 4: Simplify right side
    219,911.20x = 25,643,126,760.53
  5. Step 5: Solve for x
    x = 25,643,126,760.53/219,911.20
  6. Step 6: Final answer
    x = 116,606.74

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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.