Home / 141,825.74-195,715.68-78,163.52

Finding the Fourth Proportional to 141,825.74, 195,715.68 and 78,163.52

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Solution

The fourth proportional to 141,825.74, 195,715.68 and 78,163.52 is: 107,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,825.74 : 195,715.68 = 78,163.52 : x
  2. Step 2: Convert to fraction form
    141,825.74/195,715.68 = 78,163.52/x
  3. Step 3: Cross multiply
    141,825.74x = 195,715.68 × 78,163.52
  4. Step 4: Simplify right side
    141,825.74x = 15,297,826,467.99
  5. Step 5: Solve for x
    x = 15,297,826,467.99/141,825.74
  6. Step 6: Final answer
    x = 107,863.54

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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.