Home / 141,519.54-195,324.86-81,130.72

Finding the Fourth Proportional to 141,519.54, 195,324.86 and 81,130.72

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Solution

The fourth proportional to 141,519.54, 195,324.86 and 81,130.72 is: 111,976.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,519.54 : 195,324.86 = 81,130.72 : x
  2. Step 2: Convert to fraction form
    141,519.54/195,324.86 = 81,130.72/x
  3. Step 3: Cross multiply
    141,519.54x = 195,324.86 × 81,130.72
  4. Step 4: Simplify right side
    141,519.54x = 15,846,846,525.70
  5. Step 5: Solve for x
    x = 15,846,846,525.70/141,519.54
  6. Step 6: Final answer
    x = 111,976.39

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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.