Home / 126,107.74-189,163.50-54,051.22

Finding the Fourth Proportional to 126,107.74, 189,163.50 and 54,051.22

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Solution

The fourth proportional to 126,107.74, 189,163.50 and 54,051.22 is: 81,077.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,107.74 : 189,163.50 = 54,051.22 : x
  2. Step 2: Convert to fraction form
    126,107.74/189,163.50 = 54,051.22/x
  3. Step 3: Cross multiply
    126,107.74x = 189,163.50 × 54,051.22
  4. Step 4: Simplify right side
    126,107.74x = 10,224,517,954.47
  5. Step 5: Solve for x
    x = 10,224,517,954.47/126,107.74
  6. Step 6: Final answer
    x = 81,077.64

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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.