Home / 141,825.74-195,710.18-78,163.38

Finding the Fourth Proportional to 141,825.74, 195,710.18 and 78,163.38

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Solution

The fourth proportional to 141,825.74, 195,710.18 and 78,163.38 is: 107,860.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,825.74 : 195,710.18 = 78,163.38 : x
  2. Step 2: Convert to fraction form
    141,825.74/195,710.18 = 78,163.38/x
  3. Step 3: Cross multiply
    141,825.74x = 195,710.18 × 78,163.38
  4. Step 4: Simplify right side
    141,825.74x = 15,297,368,778.39
  5. Step 5: Solve for x
    x = 15,297,368,778.39/141,825.74
  6. Step 6: Final answer
    x = 107,860.32

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1.5x scale

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.