Home / 141,406.12-195,144.10-77,745.48

Finding the Fourth Proportional to 141,406.12, 195,144.10 and 77,745.48

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Solution

The fourth proportional to 141,406.12, 195,144.10 and 77,745.48 is: 107,290.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,406.12 : 195,144.10 = 77,745.48 : x
  2. Step 2: Convert to fraction form
    141,406.12/195,144.10 = 77,745.48/x
  3. Step 3: Cross multiply
    141,406.12x = 195,144.10 × 77,745.48
  4. Step 4: Simplify right side
    141,406.12x = 15,171,571,723.67
  5. Step 5: Solve for x
    x = 15,171,571,723.67/141,406.12
  6. Step 6: Final answer
    x = 107,290.77

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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.