Home / 197,786.11-272,945.15-117,253.21

Finding the Fourth Proportional to 197,786.11, 272,945.15 and 117,253.21

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Solution

The fourth proportional to 197,786.11, 272,945.15 and 117,253.21 is: 161,809.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,786.11 : 272,945.15 = 117,253.21 : x
  2. Step 2: Convert to fraction form
    197,786.11/272,945.15 = 117,253.21/x
  3. Step 3: Cross multiply
    197,786.11x = 272,945.15 × 117,253.21
  4. Step 4: Simplify right side
    197,786.11x = 32,003,694,991.43
  5. Step 5: Solve for x
    x = 32,003,694,991.43/197,786.11
  6. Step 6: Final answer
    x = 161,809.62

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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.