Home / 126,568.87-189,853.52-51,689.03

Finding the Fourth Proportional to 126,568.87, 189,853.52 and 51,689.03

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Solution

The fourth proportional to 126,568.87, 189,853.52 and 51,689.03 is: 77,533.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,568.87 : 189,853.52 = 51,689.03 : x
  2. Step 2: Convert to fraction form
    126,568.87/189,853.52 = 51,689.03/x
  3. Step 3: Cross multiply
    126,568.87x = 189,853.52 × 51,689.03
  4. Step 4: Simplify right side
    126,568.87x = 9,813,343,083.17
  5. Step 5: Solve for x
    x = 9,813,343,083.17/126,568.87
  6. Step 6: Final answer
    x = 77,533.62

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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.