Finding the Fourth Proportional to 154,917.70, 232,371.68 and 85,235.02
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Solution
The fourth proportional to 154,917.70, 232,371.68 and 85,235.02 is: 127,849.85
Step by Step Solution
- Step 1: Write the proportion equation
154,917.70 : 232,371.68 = 85,235.02 : x - Step 2: Convert to fraction form
154,917.70/232,371.68 = 85,235.02/x - Step 3: Cross multiply
154,917.70x = 232,371.68 × 85,235.02 - Step 4: Simplify right side
154,917.70x = 19,806,203,843.46 - Step 5: Solve for x
x = 19,806,203,843.46/154,917.70 - Step 6: Final answer
x = 127,849.85
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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.