Home / 141,380.20-195,099.74-77,717.54

Finding the Fourth Proportional to 141,380.20, 195,099.74 and 77,717.54

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Solution

The fourth proportional to 141,380.20, 195,099.74 and 77,717.54 is: 107,247.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,380.20 : 195,099.74 = 77,717.54 : x
  2. Step 2: Convert to fraction form
    141,380.20/195,099.74 = 77,717.54/x
  3. Step 3: Cross multiply
    141,380.20x = 195,099.74 × 77,717.54
  4. Step 4: Simplify right side
    141,380.20x = 15,162,672,238.04
  5. Step 5: Solve for x
    x = 15,162,672,238.04/141,380.20
  6. Step 6: Final answer
    x = 107,247.49

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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.