Finding the Fourth Proportional to 117,366.93, 161,974.53 and 66,379.95
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Solution
The fourth proportional to 117,366.93, 161,974.53 and 66,379.95 is: 91,608.95
Step by Step Solution
- Step 1: Write the proportion equation
117,366.93 : 161,974.53 = 66,379.95 : x - Step 2: Convert to fraction form
117,366.93/161,974.53 = 66,379.95/x - Step 3: Cross multiply
117,366.93x = 161,974.53 × 66,379.95 - Step 4: Simplify right side
117,366.93x = 10,751,861,202.67 - Step 5: Solve for x
x = 10,751,861,202.67/117,366.93 - Step 6: Final answer
x = 91,608.95
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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.