Home / 126,049.87-189,071.01-51,168.21

Finding the Fourth Proportional to 126,049.87, 189,071.01 and 51,168.21

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Solution

The fourth proportional to 126,049.87, 189,071.01 and 51,168.21 is: 76,750.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,049.87 : 189,071.01 = 51,168.21 : x
  2. Step 2: Convert to fraction form
    126,049.87/189,071.01 = 51,168.21/x
  3. Step 3: Cross multiply
    126,049.87x = 189,071.01 × 51,168.21
  4. Step 4: Simplify right side
    126,049.87x = 9,674,424,435.58
  5. Step 5: Solve for x
    x = 9,674,424,435.58/126,049.87
  6. Step 6: Final answer
    x = 76,750.77

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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.