Home / 146,429.46-219,565.26-78,997.65

Finding the Fourth Proportional to 146,429.46, 219,565.26 and 78,997.65

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Solution

The fourth proportional to 146,429.46, 219,565.26 and 78,997.65 is: 118,453.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,429.46 : 219,565.26 = 78,997.65 : x
  2. Step 2: Convert to fraction form
    146,429.46/219,565.26 = 78,997.65/x
  3. Step 3: Cross multiply
    146,429.46x = 219,565.26 × 78,997.65
  4. Step 4: Simplify right side
    146,429.46x = 17,345,138,738.27
  5. Step 5: Solve for x
    x = 17,345,138,738.27/146,429.46
  6. Step 6: Final answer
    x = 118,453.89

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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.