Home / 128,736.67-193,072.69-61,227.05

Finding the Fourth Proportional to 128,736.67, 193,072.69 and 61,227.05

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Solution

The fourth proportional to 128,736.67, 193,072.69 and 61,227.05 is: 91,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,736.67 : 193,072.69 = 61,227.05 : x
  2. Step 2: Convert to fraction form
    128,736.67/193,072.69 = 61,227.05/x
  3. Step 3: Cross multiply
    128,736.67x = 193,072.69 × 61,227.05
  4. Step 4: Simplify right side
    128,736.67x = 11,821,270,355.43
  5. Step 5: Solve for x
    x = 11,821,270,355.43/128,736.67
  6. Step 6: Final answer
    x = 91,825.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.