Finding the Fourth Proportional to 135,882.88, 203,731.28 and 69,193.92
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Solution
The fourth proportional to 135,882.88, 203,731.28 and 69,193.92 is: 103,743.50
Step by Step Solution
- Step 1: Write the proportion equation
135,882.88 : 203,731.28 = 69,193.92 : x - Step 2: Convert to fraction form
135,882.88/203,731.28 = 69,193.92/x - Step 3: Cross multiply
135,882.88x = 203,731.28 × 69,193.92 - Step 4: Simplify right side
135,882.88x = 14,096,965,889.82 - Step 5: Solve for x
x = 14,096,965,889.82/135,882.88 - Step 6: Final answer
x = 103,743.50
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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.