Home / 141,906.80-195,840.20-78,244.52

Finding the Fourth Proportional to 141,906.80, 195,840.20 and 78,244.52

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Solution

The fourth proportional to 141,906.80, 195,840.20 and 78,244.52 is: 107,982.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,906.80 : 195,840.20 = 78,244.52 : x
  2. Step 2: Convert to fraction form
    141,906.80/195,840.20 = 78,244.52/x
  3. Step 3: Cross multiply
    141,906.80x = 195,840.20 × 78,244.52
  4. Step 4: Simplify right side
    141,906.80x = 15,323,422,445.70
  5. Step 5: Solve for x
    x = 15,323,422,445.70/141,906.80
  6. Step 6: Final answer
    x = 107,982.30

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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.