Home / 141,865.36-195,775.56-78,205.68

Finding the Fourth Proportional to 141,865.36, 195,775.56 and 78,205.68

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Solution

The fourth proportional to 141,865.36, 195,775.56 and 78,205.68 is: 107,924.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,865.36 : 195,775.56 = 78,205.68 : x
  2. Step 2: Convert to fraction form
    141,865.36/195,775.56 = 78,205.68/x
  3. Step 3: Cross multiply
    141,865.36x = 195,775.56 × 78,205.68
  4. Step 4: Simplify right side
    141,865.36x = 15,310,760,797.18
  5. Step 5: Solve for x
    x = 15,310,760,797.18/141,865.36
  6. Step 6: Final answer
    x = 107,924.59

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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.