Home / 126,395.98-189,036.27-112,453.85

Finding the Fourth Proportional to 126,395.98, 189,036.27 and 112,453.85

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Solution

The fourth proportional to 126,395.98, 189,036.27 and 112,453.85 is: 168,184.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,395.98 : 189,036.27 = 112,453.85 : x
  2. Step 2: Convert to fraction form
    126,395.98/189,036.27 = 112,453.85/x
  3. Step 3: Cross multiply
    126,395.98x = 189,036.27 × 112,453.85
  4. Step 4: Simplify right side
    126,395.98x = 21,257,856,351.14
  5. Step 5: Solve for x
    x = 21,257,856,351.14/126,395.98
  6. Step 6: Final answer
    x = 168,184.59

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1.5x scale

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.