Home / 141,581.42-195,380.32-77,919.21

Finding the Fourth Proportional to 141,581.42, 195,380.32 and 77,919.21

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Solution

The fourth proportional to 141,581.42, 195,380.32 and 77,919.21 is: 107,527.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,581.42 : 195,380.32 = 77,919.21 : x
  2. Step 2: Convert to fraction form
    141,581.42/195,380.32 = 77,919.21/x
  3. Step 3: Cross multiply
    141,581.42x = 195,380.32 × 77,919.21
  4. Step 4: Simplify right side
    141,581.42x = 15,223,880,183.95
  5. Step 5: Solve for x
    x = 15,223,880,183.95/141,581.42
  6. Step 6: Final answer
    x = 107,527.39

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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.