Home / 141,517.78-195,192.50-81,066.37

Finding the Fourth Proportional to 141,517.78, 195,192.50 and 81,066.37

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Solution

The fourth proportional to 141,517.78, 195,192.50 and 81,066.37 is: 111,813.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,517.78 : 195,192.50 = 81,066.37 : x
  2. Step 2: Convert to fraction form
    141,517.78/195,192.50 = 81,066.37/x
  3. Step 3: Cross multiply
    141,517.78x = 195,192.50 × 81,066.37
  4. Step 4: Simplify right side
    141,517.78x = 15,823,547,426.23
  5. Step 5: Solve for x
    x = 15,823,547,426.23/141,517.78
  6. Step 6: Final answer
    x = 111,813.14

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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.