Home / 141,862.56-195,771.68-78,202.64

Finding the Fourth Proportional to 141,862.56, 195,771.68 and 78,202.64

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Solution

The fourth proportional to 141,862.56, 195,771.68 and 78,202.64 is: 107,920.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,862.56 : 195,771.68 = 78,202.64 : x
  2. Step 2: Convert to fraction form
    141,862.56/195,771.68 = 78,202.64/x
  3. Step 3: Cross multiply
    141,862.56x = 195,771.68 × 78,202.64
  4. Step 4: Simplify right side
    141,862.56x = 15,309,861,429.88
  5. Step 5: Solve for x
    x = 15,309,861,429.88/141,862.56
  6. Step 6: Final answer
    x = 107,920.38

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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.