Home / 219,917.91-329,975.25-126,423.66

Finding the Fourth Proportional to 219,917.91, 329,975.25 and 126,423.66

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Solution

The fourth proportional to 219,917.91, 329,975.25 and 126,423.66 is: 189,692.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,917.91 : 329,975.25 = 126,423.66 : x
  2. Step 2: Convert to fraction form
    219,917.91/329,975.25 = 126,423.66/x
  3. Step 3: Cross multiply
    219,917.91x = 329,975.25 × 126,423.66
  4. Step 4: Simplify right side
    219,917.91x = 41,716,678,814.42
  5. Step 5: Solve for x
    x = 41,716,678,814.42/219,917.91
  6. Step 6: Final answer
    x = 189,692.05

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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.