Finding the Fourth Proportional to 117,369.98, 161,968.07 and 66,375.99
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Solution
The fourth proportional to 117,369.98, 161,968.07 and 66,375.99 is: 91,597.45
Step by Step Solution
- Step 1: Write the proportion equation
117,369.98 : 161,968.07 = 66,375.99 : x - Step 2: Convert to fraction form
117,369.98/161,968.07 = 66,375.99/x - Step 3: Cross multiply
117,369.98x = 161,968.07 × 66,375.99 - Step 4: Simplify right side
117,369.98x = 10,750,790,994.64 - Step 5: Solve for x
x = 10,750,790,994.64/117,369.98 - Step 6: Final answer
x = 91,597.45
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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.