Home / 141,808.11-195,694.26-78,145.96

Finding the Fourth Proportional to 141,808.11, 195,694.26 and 78,145.96

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Solution

The fourth proportional to 141,808.11, 195,694.26 and 78,145.96 is: 107,840.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,808.11 : 195,694.26 = 78,145.96 : x
  2. Step 2: Convert to fraction form
    141,808.11/195,694.26 = 78,145.96/x
  3. Step 3: Cross multiply
    141,808.11x = 195,694.26 × 78,145.96
  4. Step 4: Simplify right side
    141,808.11x = 15,292,715,814.19
  5. Step 5: Solve for x
    x = 15,292,715,814.19/141,808.11
  6. Step 6: Final answer
    x = 107,840.91

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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.