Finding the Fourth Proportional to 116,880.87, 161,283.96 and 71,571.70
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Solution
The fourth proportional to 116,880.87, 161,283.96 and 71,571.70 is: 98,761.82
Step by Step Solution
- Step 1: Write the proportion equation
116,880.87 : 161,283.96 = 71,571.70 : x - Step 2: Convert to fraction form
116,880.87/161,283.96 = 71,571.70/x - Step 3: Cross multiply
116,880.87x = 161,283.96 × 71,571.70 - Step 4: Simplify right side
116,880.87x = 11,543,367,401.54 - Step 5: Solve for x
x = 11,543,367,401.54/116,880.87 - Step 6: Final answer
x = 98,761.82
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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.