Finding the Fourth Proportional to 116,725.23, 161,086.81 and 71,388.99
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Solution
The fourth proportional to 116,725.23, 161,086.81 and 71,388.99 is: 98,520.47
Step by Step Solution
- Step 1: Write the proportion equation
116,725.23 : 161,086.81 = 71,388.99 : x - Step 2: Convert to fraction form
116,725.23/161,086.81 = 71,388.99/x - Step 3: Cross multiply
116,725.23x = 161,086.81 × 71,388.99 - Step 4: Simplify right side
116,725.23x = 11,499,824,668.22 - Step 5: Solve for x
x = 11,499,824,668.22/116,725.23 - Step 6: Final answer
x = 98,520.47
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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.