Finding the Fourth Proportional to 161,281.44, 222,575.99 and 89,662.66
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Solution
The fourth proportional to 161,281.44, 222,575.99 and 89,662.66 is: 123,738.70
Step by Step Solution
- Step 1: Write the proportion equation
161,281.44 : 222,575.99 = 89,662.66 : x - Step 2: Convert to fraction form
161,281.44/222,575.99 = 89,662.66/x - Step 3: Cross multiply
161,281.44x = 222,575.99 × 89,662.66 - Step 4: Simplify right side
161,281.44x = 19,956,755,315.53 - Step 5: Solve for x
x = 19,956,755,315.53/161,281.44 - Step 6: Final answer
x = 123,738.70
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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.