Home / 197,821.78-272,993.69-107,180.06

Finding the Fourth Proportional to 197,821.78, 272,993.69 and 107,180.06

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Solution

The fourth proportional to 197,821.78, 272,993.69 and 107,180.06 is: 147,908.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,821.78 : 272,993.69 = 107,180.06 : x
  2. Step 2: Convert to fraction form
    197,821.78/272,993.69 = 107,180.06/x
  3. Step 3: Cross multiply
    197,821.78x = 272,993.69 × 107,180.06
  4. Step 4: Simplify right side
    197,821.78x = 29,259,478,172.95
  5. Step 5: Solve for x
    x = 29,259,478,172.95/197,821.78
  6. Step 6: Final answer
    x = 147,908.28

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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.