Home / 141,679.26-195,517.36-78,016.90

Finding the Fourth Proportional to 141,679.26, 195,517.36 and 78,016.90

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Solution

The fourth proportional to 141,679.26, 195,517.36 and 78,016.90 is: 107,663.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,679.26 : 195,517.36 = 78,016.90 : x
  2. Step 2: Convert to fraction form
    141,679.26/195,517.36 = 78,016.90/x
  3. Step 3: Cross multiply
    141,679.26x = 195,517.36 × 78,016.90
  4. Step 4: Simplify right side
    141,679.26x = 15,253,658,323.38
  5. Step 5: Solve for x
    x = 15,253,658,323.38/141,679.26
  6. Step 6: Final answer
    x = 107,663.31

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1.5x scale

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.