Home / 126,056.66-189,113.03-54,990.80

Finding the Fourth Proportional to 126,056.66, 189,113.03 and 54,990.80

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Solution

The fourth proportional to 126,056.66, 189,113.03 and 54,990.80 is: 82,498.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,056.66 : 189,113.03 = 54,990.80 : x
  2. Step 2: Convert to fraction form
    126,056.66/189,113.03 = 54,990.80/x
  3. Step 3: Cross multiply
    126,056.66x = 189,113.03 × 54,990.80
  4. Step 4: Simplify right side
    126,056.66x = 10,399,476,504.99
  5. Step 5: Solve for x
    x = 10,399,476,504.99/126,056.66
  6. Step 6: Final answer
    x = 82,498.43

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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.