Home / 141,910.36-195,840.40-78,252.26

Finding the Fourth Proportional to 141,910.36, 195,840.40 and 78,252.26

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Solution

The fourth proportional to 141,910.36, 195,840.40 and 78,252.26 is: 107,990.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,910.36 : 195,840.40 = 78,252.26 : x
  2. Step 2: Convert to fraction form
    141,910.36/195,840.40 = 78,252.26/x
  3. Step 3: Cross multiply
    141,910.36x = 195,840.40 × 78,252.26
  4. Step 4: Simplify right side
    141,910.36x = 15,324,953,899.30
  5. Step 5: Solve for x
    x = 15,324,953,899.30/141,910.36
  6. Step 6: Final answer
    x = 107,990.38

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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.