Finding the Fourth Proportional to 126,410.83, 189,563.49 and 51,479.96
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Solution
The fourth proportional to 126,410.83, 189,563.49 and 51,479.96 is: 77,198.45
Step by Step Solution
- Step 1: Write the proportion equation
126,410.83 : 189,563.49 = 51,479.96 : x - Step 2: Convert to fraction form
126,410.83/189,563.49 = 51,479.96/x - Step 3: Cross multiply
126,410.83x = 189,563.49 × 51,479.96 - Step 4: Simplify right side
126,410.83x = 9,758,719,934.84 - Step 5: Solve for x
x = 9,758,719,934.84/126,410.83 - Step 6: Final answer
x = 77,198.45
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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.