Home / 141,679.19-195,516.38-78,016.50

Finding the Fourth Proportional to 141,679.19, 195,516.38 and 78,016.50

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Solution

The fourth proportional to 141,679.19, 195,516.38 and 78,016.50 is: 107,662.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,679.19 : 195,516.38 = 78,016.50 : x
  2. Step 2: Convert to fraction form
    141,679.19/195,516.38 = 78,016.50/x
  3. Step 3: Cross multiply
    141,679.19x = 195,516.38 × 78,016.50
  4. Step 4: Simplify right side
    141,679.19x = 15,253,503,855.31
  5. Step 5: Solve for x
    x = 15,253,503,855.31/141,679.19
  6. Step 6: Final answer
    x = 107,662.27

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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.