Home / 141,861.26-195,769.88-78,201.33

Finding the Fourth Proportional to 141,861.26, 195,769.88 and 78,201.33

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Solution

The fourth proportional to 141,861.26, 195,769.88 and 78,201.33 is: 107,918.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,861.26 : 195,769.88 = 78,201.33 : x
  2. Step 2: Convert to fraction form
    141,861.26/195,769.88 = 78,201.33/x
  3. Step 3: Cross multiply
    141,861.26x = 195,769.88 × 78,201.33
  4. Step 4: Simplify right side
    141,861.26x = 15,309,464,598.93
  5. Step 5: Solve for x
    x = 15,309,464,598.93/141,861.26
  6. Step 6: Final answer
    x = 107,918.58

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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.