Home / 141,842.75-195,743.39-78,180.80

Finding the Fourth Proportional to 141,842.75, 195,743.39 and 78,180.80

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Solution

The fourth proportional to 141,842.75, 195,743.39 and 78,180.80 is: 107,889.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,842.75 : 195,743.39 = 78,180.80 : x
  2. Step 2: Convert to fraction form
    141,842.75/195,743.39 = 78,180.80/x
  3. Step 3: Cross multiply
    141,842.75x = 195,743.39 × 78,180.80
  4. Step 4: Simplify right side
    141,842.75x = 15,303,373,455.29
  5. Step 5: Solve for x
    x = 15,303,373,455.29/141,842.75
  6. Step 6: Final answer
    x = 107,889.72

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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.