Home / 104,879.18-144,734.85-57,132.50

Finding the Fourth Proportional to 104,879.18, 144,734.85 and 57,132.50

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Solution

The fourth proportional to 104,879.18, 144,734.85 and 57,132.50 is: 78,843.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,879.18 : 144,734.85 = 57,132.50 : x
  2. Step 2: Convert to fraction form
    104,879.18/144,734.85 = 57,132.50/x
  3. Step 3: Cross multiply
    104,879.18x = 144,734.85 × 57,132.50
  4. Step 4: Simplify right side
    104,879.18x = 8,269,063,817.63
  5. Step 5: Solve for x
    x = 8,269,063,817.63/104,879.18
  6. Step 6: Final answer
    x = 78,843.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.