Home / 141,679.47-195,516.70-78,016.75

Finding the Fourth Proportional to 141,679.47, 195,516.70 and 78,016.75

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Solution

The fourth proportional to 141,679.47, 195,516.70 and 78,016.75 is: 107,662.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,679.47 : 195,516.70 = 78,016.75 : x
  2. Step 2: Convert to fraction form
    141,679.47/195,516.70 = 78,016.75/x
  3. Step 3: Cross multiply
    141,679.47x = 195,516.70 × 78,016.75
  4. Step 4: Simplify right side
    141,679.47x = 15,253,577,504.73
  5. Step 5: Solve for x
    x = 15,253,577,504.73/141,679.47
  6. Step 6: Final answer
    x = 107,662.58

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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.