Finding the Fourth Proportional to 126,382.28, 189,602.64 and 67,274.96
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Solution
The fourth proportional to 126,382.28, 189,602.64 and 67,274.96 is: 100,927.99
Step by Step Solution
- Step 1: Write the proportion equation
126,382.28 : 189,602.64 = 67,274.96 : x - Step 2: Convert to fraction form
126,382.28/189,602.64 = 67,274.96/x - Step 3: Cross multiply
126,382.28x = 189,602.64 × 67,274.96 - Step 4: Simplify right side
126,382.28x = 12,755,510,021.89 - Step 5: Solve for x
x = 12,755,510,021.89/126,382.28 - Step 6: Final answer
x = 100,927.99
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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.