Home / 144,160.16-198,936.96-79,628.11

Finding the Fourth Proportional to 144,160.16, 198,936.96 and 79,628.11

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Solution

The fourth proportional to 144,160.16, 198,936.96 and 79,628.11 is: 109,884.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,160.16 : 198,936.96 = 79,628.11 : x
  2. Step 2: Convert to fraction form
    144,160.16/198,936.96 = 79,628.11/x
  3. Step 3: Cross multiply
    144,160.16x = 198,936.96 × 79,628.11
  4. Step 4: Simplify right side
    144,160.16x = 15,840,972,940.19
  5. Step 5: Solve for x
    x = 15,840,972,940.19/144,160.16
  6. Step 6: Final answer
    x = 109,884.54

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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.