Home / 126,279.40-189,246.30-102,951.40

Finding the Fourth Proportional to 126,279.40, 189,246.30 and 102,951.40

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Solution

The fourth proportional to 126,279.40, 189,246.30 and 102,951.40 is: 154,286.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,279.40 : 189,246.30 = 102,951.40 : x
  2. Step 2: Convert to fraction form
    126,279.40/189,246.30 = 102,951.40/x
  3. Step 3: Cross multiply
    126,279.40x = 189,246.30 × 102,951.40
  4. Step 4: Simplify right side
    126,279.40x = 19,483,171,529.82
  5. Step 5: Solve for x
    x = 19,483,171,529.82/126,279.40
  6. Step 6: Final answer
    x = 154,286.22

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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.