Finding the Fourth Proportional to 126,034.94, 189,107.99 and 66,856.08
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Solution
The fourth proportional to 126,034.94, 189,107.99 and 66,856.08 is: 100,313.60
Step by Step Solution
- Step 1: Write the proportion equation
126,034.94 : 189,107.99 = 66,856.08 : x - Step 2: Convert to fraction form
126,034.94/189,107.99 = 66,856.08/x - Step 3: Cross multiply
126,034.94x = 189,107.99 × 66,856.08 - Step 4: Simplify right side
126,034.94x = 12,643,018,573.80 - Step 5: Solve for x
x = 12,643,018,573.80/126,034.94 - Step 6: Final answer
x = 100,313.60
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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.