Home / 141,906.39-195,859.20-81,518.46

Finding the Fourth Proportional to 141,906.39, 195,859.20 and 81,518.46

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Solution

The fourth proportional to 141,906.39, 195,859.20 and 81,518.46 is: 112,511.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,906.39 : 195,859.20 = 81,518.46 : x
  2. Step 2: Convert to fraction form
    141,906.39/195,859.20 = 81,518.46/x
  3. Step 3: Cross multiply
    141,906.39x = 195,859.20 × 81,518.46
  4. Step 4: Simplify right side
    141,906.39x = 15,966,140,360.83
  5. Step 5: Solve for x
    x = 15,966,140,360.83/141,906.39
  6. Step 6: Final answer
    x = 112,511.78

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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.