Home / 141,999.18-195,958.85-78,336.97

Finding the Fourth Proportional to 141,999.18, 195,958.85 and 78,336.97

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Solution

The fourth proportional to 141,999.18, 195,958.85 and 78,336.97 is: 108,105.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,999.18 : 195,958.85 = 78,336.97 : x
  2. Step 2: Convert to fraction form
    141,999.18/195,958.85 = 78,336.97/x
  3. Step 3: Cross multiply
    141,999.18x = 195,958.85 × 78,336.97
  4. Step 4: Simplify right side
    141,999.18x = 15,350,823,270.10
  5. Step 5: Solve for x
    x = 15,350,823,270.10/141,999.18
  6. Step 6: Final answer
    x = 108,105.02

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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.