Home / 141,756.11-195,623.42-78,093.90

Finding the Fourth Proportional to 141,756.11, 195,623.42 and 78,093.90

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Solution

The fourth proportional to 141,756.11, 195,623.42 and 78,093.90 is: 107,769.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,756.11 : 195,623.42 = 78,093.90 : x
  2. Step 2: Convert to fraction form
    141,756.11/195,623.42 = 78,093.90/x
  3. Step 3: Cross multiply
    141,756.11x = 195,623.42 × 78,093.90
  4. Step 4: Simplify right side
    141,756.11x = 15,276,995,408.67
  5. Step 5: Solve for x
    x = 15,276,995,408.67/141,756.11
  6. Step 6: Final answer
    x = 107,769.58

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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.