Home / 197,629.43-272,728.30-106,985.37

Finding the Fourth Proportional to 197,629.43, 272,728.30 and 106,985.37

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Solution

The fourth proportional to 197,629.43, 272,728.30 and 106,985.37 is: 147,639.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,629.43 : 272,728.30 = 106,985.37 : x
  2. Step 2: Convert to fraction form
    197,629.43/272,728.30 = 106,985.37/x
  3. Step 3: Cross multiply
    197,629.43x = 272,728.30 × 106,985.37
  4. Step 4: Simplify right side
    197,629.43x = 29,177,937,195.97
  5. Step 5: Solve for x
    x = 29,177,937,195.97/197,629.43
  6. Step 6: Final answer
    x = 147,639.64

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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.