Home / 219,919.86-329,879.79-126,365.94

Finding the Fourth Proportional to 219,919.86, 329,879.79 and 126,365.94

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Solution

The fourth proportional to 219,919.86, 329,879.79 and 126,365.94 is: 189,548.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,919.86 : 329,879.79 = 126,365.94 : x
  2. Step 2: Convert to fraction form
    219,919.86/329,879.79 = 126,365.94/x
  3. Step 3: Cross multiply
    219,919.86x = 329,879.79 × 126,365.94
  4. Step 4: Simplify right side
    219,919.86x = 41,685,569,750.35
  5. Step 5: Solve for x
    x = 41,685,569,750.35/219,919.86
  6. Step 6: Final answer
    x = 189,548.91

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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.