Home / 126,728.92-189,935.28-110,896.30

Finding the Fourth Proportional to 126,728.92, 189,935.28 and 110,896.30

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Solution

The fourth proportional to 126,728.92, 189,935.28 and 110,896.30 is: 166,206.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,728.92 : 189,935.28 = 110,896.30 : x
  2. Step 2: Convert to fraction form
    126,728.92/189,935.28 = 110,896.30/x
  3. Step 3: Cross multiply
    126,728.92x = 189,935.28 × 110,896.30
  4. Step 4: Simplify right side
    126,728.92x = 21,063,119,791.46
  5. Step 5: Solve for x
    x = 21,063,119,791.46/126,728.92
  6. Step 6: Final answer
    x = 166,206.10

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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.