Home / 141,918.86-195,833.68-78,255.02

Finding the Fourth Proportional to 141,918.86, 195,833.68 and 78,255.02

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Solution

The fourth proportional to 141,918.86, 195,833.68 and 78,255.02 is: 107,984.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,918.86 : 195,833.68 = 78,255.02 : x
  2. Step 2: Convert to fraction form
    141,918.86/195,833.68 = 78,255.02/x
  3. Step 3: Cross multiply
    141,918.86x = 195,833.68 × 78,255.02
  4. Step 4: Simplify right side
    141,918.86x = 15,324,967,370.27
  5. Step 5: Solve for x
    x = 15,324,967,370.27/141,918.86
  6. Step 6: Final answer
    x = 107,984.01

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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.