Home / 126,004.94-189,086.52-51,125.40

Finding the Fourth Proportional to 126,004.94, 189,086.52 and 51,125.40

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Solution

The fourth proportional to 126,004.94, 189,086.52 and 51,125.40 is: 76,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,004.94 : 189,086.52 = 51,125.40 : x
  2. Step 2: Convert to fraction form
    126,004.94/189,086.52 = 51,125.40/x
  3. Step 3: Cross multiply
    126,004.94x = 189,086.52 × 51,125.40
  4. Step 4: Simplify right side
    126,004.94x = 9,667,123,969.61
  5. Step 5: Solve for x
    x = 9,667,123,969.61/126,004.94
  6. Step 6: Final answer
    x = 76,720.20

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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.