Finding the Fourth Proportional to 197,699.49, 272,891.84 and 120,174.87
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Solution
The fourth proportional to 197,699.49, 272,891.84 and 120,174.87 is: 165,881.77
Step by Step Solution
- Step 1: Write the proportion equation
197,699.49 : 272,891.84 = 120,174.87 : x - Step 2: Convert to fraction form
197,699.49/272,891.84 = 120,174.87/x - Step 3: Cross multiply
197,699.49x = 272,891.84 × 120,174.87 - Step 4: Simplify right side
197,699.49x = 32,794,740,795.19 - Step 5: Solve for x
x = 32,794,740,795.19/197,699.49 - Step 6: Final answer
x = 165,881.77
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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.