Home / 141,969.86-195,918.57-81,552.20

Finding the Fourth Proportional to 141,969.86, 195,918.57 and 81,552.20

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Solution

The fourth proportional to 141,969.86, 195,918.57 and 81,552.20 is: 112,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,969.86 : 195,918.57 = 81,552.20 : x
  2. Step 2: Convert to fraction form
    141,969.86/195,918.57 = 81,552.20/x
  3. Step 3: Cross multiply
    141,969.86x = 195,918.57 × 81,552.20
  4. Step 4: Simplify right side
    141,969.86x = 15,977,589,996.59
  5. Step 5: Solve for x
    x = 15,977,589,996.59/141,969.86
  6. Step 6: Final answer
    x = 112,542.13

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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.