Home / 126,031.94-189,103.49-66,853.08

Finding the Fourth Proportional to 126,031.94, 189,103.49 and 66,853.08

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Solution

The fourth proportional to 126,031.94, 189,103.49 and 66,853.08 is: 100,309.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,031.94 : 189,103.49 = 66,853.08 : x
  2. Step 2: Convert to fraction form
    126,031.94/189,103.49 = 66,853.08/x
  3. Step 3: Cross multiply
    126,031.94x = 189,103.49 × 66,853.08
  4. Step 4: Simplify right side
    126,031.94x = 12,642,150,410.98
  5. Step 5: Solve for x
    x = 12,642,150,410.98/126,031.94
  6. Step 6: Final answer
    x = 100,309.10

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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.