Home / 141,712.08-195,571.52-78,049.86

Finding the Fourth Proportional to 141,712.08, 195,571.52 and 78,049.86

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Solution

The fourth proportional to 141,712.08, 195,571.52 and 78,049.86 is: 107,713.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,712.08 : 195,571.52 = 78,049.86 : x
  2. Step 2: Convert to fraction form
    141,712.08/195,571.52 = 78,049.86/x
  3. Step 3: Cross multiply
    141,712.08x = 195,571.52 × 78,049.86
  4. Step 4: Simplify right side
    141,712.08x = 15,264,329,755.99
  5. Step 5: Solve for x
    x = 15,264,329,755.99/141,712.08
  6. Step 6: Final answer
    x = 107,713.68

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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.