Home / 105,879.09-158,721.15-45,869.85

Finding the Fourth Proportional to 105,879.09, 158,721.15 and 45,869.85

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Solution

The fourth proportional to 105,879.09, 158,721.15 and 45,869.85 is: 68,762.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,879.09 : 158,721.15 = 45,869.85 : x
  2. Step 2: Convert to fraction form
    105,879.09/158,721.15 = 45,869.85/x
  3. Step 3: Cross multiply
    105,879.09x = 158,721.15 × 45,869.85
  4. Step 4: Simplify right side
    105,879.09x = 7,280,515,342.33
  5. Step 5: Solve for x
    x = 7,280,515,342.33/105,879.09
  6. Step 6: Final answer
    x = 68,762.54

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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.