Finding the Fourth Proportional to 121,136.11, 181,724.91 and 41,165.62
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Solution
The fourth proportional to 121,136.11, 181,724.91 and 41,165.62 is: 61,755.48
Step by Step Solution
- Step 1: Write the proportion equation
121,136.11 : 181,724.91 = 41,165.62 : x - Step 2: Convert to fraction form
121,136.11/181,724.91 = 41,165.62/x - Step 3: Cross multiply
121,136.11x = 181,724.91 × 41,165.62 - Step 4: Simplify right side
121,136.11x = 7,480,818,589.59 - Step 5: Solve for x
x = 7,480,818,589.59/121,136.11 - Step 6: Final answer
x = 61,755.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.