Finding the Fourth Proportional to 136,901.28, 205,351.79 and 51,528.08
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Solution
The fourth proportional to 136,901.28, 205,351.79 and 51,528.08 is: 77,292.07
Step by Step Solution
- Step 1: Write the proportion equation
136,901.28 : 205,351.79 = 51,528.08 : x - Step 2: Convert to fraction form
136,901.28/205,351.79 = 51,528.08/x - Step 3: Cross multiply
136,901.28x = 205,351.79 × 51,528.08 - Step 4: Simplify right side
136,901.28x = 10,581,383,463.26 - Step 5: Solve for x
x = 10,581,383,463.26/136,901.28 - Step 6: Final answer
x = 77,292.07
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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.