Finding the Fourth Proportional to 197,189.84, 272,121.96 and 107,765.84
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Solution
The fourth proportional to 197,189.84, 272,121.96 and 107,765.84 is: 148,716.85
Step by Step Solution
- Step 1: Write the proportion equation
197,189.84 : 272,121.96 = 107,765.84 : x - Step 2: Convert to fraction form
197,189.84/272,121.96 = 107,765.84/x - Step 3: Cross multiply
197,189.84x = 272,121.96 × 107,765.84 - Step 4: Simplify right side
197,189.84x = 29,325,451,601.85 - Step 5: Solve for x
x = 29,325,451,601.85/197,189.84 - Step 6: Final answer
x = 148,716.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.