Finding the Fourth Proportional to 181,842.12, 251,019.78 and 122,260.68
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Solution
The fourth proportional to 181,842.12, 251,019.78 and 122,260.68 is: 168,771.95
Step by Step Solution
- Step 1: Write the proportion equation
181,842.12 : 251,019.78 = 122,260.68 : x - Step 2: Convert to fraction form
181,842.12/251,019.78 = 122,260.68/x - Step 3: Cross multiply
181,842.12x = 251,019.78 × 122,260.68 - Step 4: Simplify right side
181,842.12x = 30,689,848,996.25 - Step 5: Solve for x
x = 30,689,848,996.25/181,842.12 - Step 6: Final answer
x = 168,771.95
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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.