Home / 141,860.22-195,784.84-81,449.80

Finding the Fourth Proportional to 141,860.22, 195,784.84 and 81,449.80

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Solution

The fourth proportional to 141,860.22, 195,784.84 and 81,449.80 is: 112,410.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,860.22 : 195,784.84 = 81,449.80 : x
  2. Step 2: Convert to fraction form
    141,860.22/195,784.84 = 81,449.80/x
  3. Step 3: Cross multiply
    141,860.22x = 195,784.84 × 81,449.80
  4. Step 4: Simplify right side
    141,860.22x = 15,946,636,061.03
  5. Step 5: Solve for x
    x = 15,946,636,061.03/141,860.22
  6. Step 6: Final answer
    x = 112,410.91

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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.