Home / 126,033.44-189,105.74-66,854.58

Finding the Fourth Proportional to 126,033.44, 189,105.74 and 66,854.58

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Solution

The fourth proportional to 126,033.44, 189,105.74 and 66,854.58 is: 100,311.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,033.44 : 189,105.74 = 66,854.58 : x
  2. Step 2: Convert to fraction form
    126,033.44/189,105.74 = 66,854.58/x
  3. Step 3: Cross multiply
    126,033.44x = 189,105.74 × 66,854.58
  4. Step 4: Simplify right side
    126,033.44x = 12,642,584,489.02
  5. Step 5: Solve for x
    x = 12,642,584,489.02/126,033.44
  6. Step 6: Final answer
    x = 100,311.35

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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.