Home / 141,918.58-195,843.45-78,256.36

Finding the Fourth Proportional to 141,918.58, 195,843.45 and 78,256.36

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Solution

The fourth proportional to 141,918.58, 195,843.45 and 78,256.36 is: 107,991.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,918.58 : 195,843.45 = 78,256.36 : x
  2. Step 2: Convert to fraction form
    141,918.58/195,843.45 = 78,256.36/x
  3. Step 3: Cross multiply
    141,918.58x = 195,843.45 × 78,256.36
  4. Step 4: Simplify right side
    141,918.58x = 15,325,995,526.84
  5. Step 5: Solve for x
    x = 15,325,995,526.84/141,918.58
  6. Step 6: Final answer
    x = 107,991.47

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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.