Home / 141,409.82-195,146.19-76,879.68

Finding the Fourth Proportional to 141,409.82, 195,146.19 and 76,879.68

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Solution

The fourth proportional to 141,409.82, 195,146.19 and 76,879.68 is: 106,094.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,409.82 : 195,146.19 = 76,879.68 : x
  2. Step 2: Convert to fraction form
    141,409.82/195,146.19 = 76,879.68/x
  3. Step 3: Cross multiply
    141,409.82x = 195,146.19 × 76,879.68
  4. Step 4: Simplify right side
    141,409.82x = 15,002,776,640.42
  5. Step 5: Solve for x
    x = 15,002,776,640.42/141,409.82
  6. Step 6: Final answer
    x = 106,094.31

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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.