Home / 126,617.97-189,856.83-51,790.65

Finding the Fourth Proportional to 126,617.97, 189,856.83 and 51,790.65

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Solution

The fourth proportional to 126,617.97, 189,856.83 and 51,790.65 is: 77,657.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,617.97 : 189,856.83 = 51,790.65 : x
  2. Step 2: Convert to fraction form
    126,617.97/189,856.83 = 51,790.65/x
  3. Step 3: Cross multiply
    126,617.97x = 189,856.83 × 51,790.65
  4. Step 4: Simplify right side
    126,617.97x = 9,832,808,632.64
  5. Step 5: Solve for x
    x = 9,832,808,632.64/126,617.97
  6. Step 6: Final answer
    x = 77,657.29

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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.