Home / 141,716.21-195,559.39-78,054

Finding the Fourth Proportional to 141,716.21, 195,559.39 and 78,054

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Solution

The fourth proportional to 141,716.21, 195,559.39 and 78,054 is: 107,709.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,716.21 : 195,559.39 = 78,054 : x
  2. Step 2: Convert to fraction form
    141,716.21/195,559.39 = 78,054/x
  3. Step 3: Cross multiply
    141,716.21x = 195,559.39 × 78,054
  4. Step 4: Simplify right side
    141,716.21x = 15,264,192,236.79
  5. Step 5: Solve for x
    x = 15,264,192,236.79/141,716.21
  6. Step 6: Final answer
    x = 107,709.57

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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.