Home / 141,508.05-195,277.94-81,114.30

Finding the Fourth Proportional to 141,508.05, 195,277.94 and 81,114.30

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Solution

The fourth proportional to 141,508.05, 195,277.94 and 81,114.30 is: 111,935.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,508.05 : 195,277.94 = 81,114.30 : x
  2. Step 2: Convert to fraction form
    141,508.05/195,277.94 = 81,114.30/x
  3. Step 3: Cross multiply
    141,508.05x = 195,277.94 × 81,114.30
  4. Step 4: Simplify right side
    141,508.05x = 15,839,833,002.97
  5. Step 5: Solve for x
    x = 15,839,833,002.97/141,508.05
  6. Step 6: Final answer
    x = 111,935.91

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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.