Home / 126,628.08-189,936.84-33,131.76

Finding the Fourth Proportional to 126,628.08, 189,936.84 and 33,131.76

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Solution

The fourth proportional to 126,628.08, 189,936.84 and 33,131.76 is: 49,696.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,628.08 : 189,936.84 = 33,131.76 : x
  2. Step 2: Convert to fraction form
    126,628.08/189,936.84 = 33,131.76/x
  3. Step 3: Cross multiply
    126,628.08x = 189,936.84 × 33,131.76
  4. Step 4: Simplify right side
    126,628.08x = 6,292,941,798.04
  5. Step 5: Solve for x
    x = 6,292,941,798.04/126,628.08
  6. Step 6: Final answer
    x = 49,696.26

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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.