Home / 141,896.80-195,817.26-78,235.66

Finding the Fourth Proportional to 141,896.80, 195,817.26 and 78,235.66

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Solution

The fourth proportional to 141,896.80, 195,817.26 and 78,235.66 is: 107,965.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,896.80 : 195,817.26 = 78,235.66 : x
  2. Step 2: Convert to fraction form
    141,896.80/195,817.26 = 78,235.66/x
  3. Step 3: Cross multiply
    141,896.80x = 195,817.26 × 78,235.66
  4. Step 4: Simplify right side
    141,896.80x = 15,319,892,575.49
  5. Step 5: Solve for x
    x = 15,319,892,575.49/141,896.80
  6. Step 6: Final answer
    x = 107,965.03

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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.