Finding the Fourth Proportional to 116,725.68, 161,082.18 and 66,424.68
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Solution
The fourth proportional to 116,725.68, 161,082.18 and 66,424.68 is: 91,666.48
Step by Step Solution
- Step 1: Write the proportion equation
116,725.68 : 161,082.18 = 66,424.68 : x - Step 2: Convert to fraction form
116,725.68/161,082.18 = 66,424.68/x - Step 3: Cross multiply
116,725.68x = 161,082.18 × 66,424.68 - Step 4: Simplify right side
116,725.68x = 10,699,832,260.20 - Step 5: Solve for x
x = 10,699,832,260.20/116,725.68 - Step 6: Final answer
x = 91,666.48
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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.