Home / 126,736.56-189,936.90-67,444.56

Finding the Fourth Proportional to 126,736.56, 189,936.90 and 67,444.56

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Solution

The fourth proportional to 126,736.56, 189,936.90 and 67,444.56 is: 101,077.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,736.56 : 189,936.90 = 67,444.56 : x
  2. Step 2: Convert to fraction form
    126,736.56/189,936.90 = 67,444.56/x
  3. Step 3: Cross multiply
    126,736.56x = 189,936.90 × 67,444.56
  4. Step 4: Simplify right side
    126,736.56x = 12,810,210,648.26
  5. Step 5: Solve for x
    x = 12,810,210,648.26/126,736.56
  6. Step 6: Final answer
    x = 101,077.47

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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.