Home / 141,849.92-195,753.83-78,187.77

Finding the Fourth Proportional to 141,849.92, 195,753.83 and 78,187.77

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Solution

The fourth proportional to 141,849.92, 195,753.83 and 78,187.77 is: 107,899.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,849.92 : 195,753.83 = 78,187.77 : x
  2. Step 2: Convert to fraction form
    141,849.92/195,753.83 = 78,187.77/x
  3. Step 3: Cross multiply
    141,849.92x = 195,753.83 × 78,187.77
  4. Step 4: Simplify right side
    141,849.92x = 15,305,555,045.72
  5. Step 5: Solve for x
    x = 15,305,555,045.72/141,849.92
  6. Step 6: Final answer
    x = 107,899.64

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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.