Home / 141,879.30-195,794.80-78,219.42

Finding the Fourth Proportional to 141,879.30, 195,794.80 and 78,219.42

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Solution

The fourth proportional to 141,879.30, 195,794.80 and 78,219.42 is: 107,943.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,879.30 : 195,794.80 = 78,219.42 : x
  2. Step 2: Convert to fraction form
    141,879.30/195,794.80 = 78,219.42/x
  3. Step 3: Cross multiply
    141,879.30x = 195,794.80 × 78,219.42
  4. Step 4: Simplify right side
    141,879.30x = 15,314,955,695.02
  5. Step 5: Solve for x
    x = 15,314,955,695.02/141,879.30
  6. Step 6: Final answer
    x = 107,943.55

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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.