Finding the Fourth Proportional to 116,685.21, 161,027.63 and 68,938.44
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Solution
The fourth proportional to 116,685.21, 161,027.63 and 68,938.44 is: 95,136.26
Step by Step Solution
- Step 1: Write the proportion equation
116,685.21 : 161,027.63 = 68,938.44 : x - Step 2: Convert to fraction form
116,685.21/161,027.63 = 68,938.44/x - Step 3: Cross multiply
116,685.21x = 161,027.63 × 68,938.44 - Step 4: Simplify right side
116,685.21x = 11,100,993,609.10 - Step 5: Solve for x
x = 11,100,993,609.10/116,685.21 - Step 6: Final answer
x = 95,136.26
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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.