Finding the Fourth Proportional to 117,151.67, 161,669.04 and 66,161.99
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Solution
The fourth proportional to 117,151.67, 161,669.04 and 66,161.99 is: 91,303.40
Step by Step Solution
- Step 1: Write the proportion equation
117,151.67 : 161,669.04 = 66,161.99 : x - Step 2: Convert to fraction form
117,151.67/161,669.04 = 66,161.99/x - Step 3: Cross multiply
117,151.67x = 161,669.04 × 66,161.99 - Step 4: Simplify right side
117,151.67x = 10,696,345,295.24 - Step 5: Solve for x
x = 10,696,345,295.24/117,151.67 - Step 6: Final answer
x = 91,303.40
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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.