Finding the Fourth Proportional to 154,129.80, 231,194.70 and 119,137.80
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Solution
The fourth proportional to 154,129.80, 231,194.70 and 119,137.80 is: 178,706.70
Step by Step Solution
- Step 1: Write the proportion equation
154,129.80 : 231,194.70 = 119,137.80 : x - Step 2: Convert to fraction form
154,129.80/231,194.70 = 119,137.80/x - Step 3: Cross multiply
154,129.80x = 231,194.70 × 119,137.80 - Step 4: Simplify right side
154,129.80x = 27,544,027,929.66 - Step 5: Solve for x
x = 27,544,027,929.66/154,129.80 - Step 6: Final answer
x = 178,706.70
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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.