Home / 141,408.24-195,138.38-77,745.54

Finding the Fourth Proportional to 141,408.24, 195,138.38 and 77,745.54

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Solution

The fourth proportional to 141,408.24, 195,138.38 and 77,745.54 is: 107,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,408.24 : 195,138.38 = 77,745.54 : x
  2. Step 2: Convert to fraction form
    141,408.24/195,138.38 = 77,745.54/x
  3. Step 3: Cross multiply
    141,408.24x = 195,138.38 × 77,745.54
  4. Step 4: Simplify right side
    141,408.24x = 15,171,138,727.83
  5. Step 5: Solve for x
    x = 15,171,138,727.83/141,408.24
  6. Step 6: Final answer
    x = 107,286.10

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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.