Home / 141,862.38-195,770.70-78,198.81

Finding the Fourth Proportional to 141,862.38, 195,770.70 and 78,198.81

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Solution

The fourth proportional to 141,862.38, 195,770.70 and 78,198.81 is: 107,914.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,862.38 : 195,770.70 = 78,198.81 : x
  2. Step 2: Convert to fraction form
    141,862.38/195,770.70 = 78,198.81/x
  3. Step 3: Cross multiply
    141,862.38x = 195,770.70 × 78,198.81
  4. Step 4: Simplify right side
    141,862.38x = 15,309,035,772.87
  5. Step 5: Solve for x
    x = 15,309,035,772.87/141,862.38
  6. Step 6: Final answer
    x = 107,914.70

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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.