Home / 107,879.24-161,535.92-76,117.85

Finding the Fourth Proportional to 107,879.24, 161,535.92 and 76,117.85

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Solution

The fourth proportional to 107,879.24, 161,535.92 and 76,117.85 is: 113,977.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,879.24 : 161,535.92 = 76,117.85 : x
  2. Step 2: Convert to fraction form
    107,879.24/161,535.92 = 76,117.85/x
  3. Step 3: Cross multiply
    107,879.24x = 161,535.92 × 76,117.85
  4. Step 4: Simplify right side
    107,879.24x = 12,295,767,228.15
  5. Step 5: Solve for x
    x = 12,295,767,228.15/107,879.24
  6. Step 6: Final answer
    x = 113,977.14

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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.