Finding the Fourth Proportional to 117,809.73, 176,647.63 and 80,415.07
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Solution
The fourth proportional to 117,809.73, 176,647.63 and 80,415.07 is: 120,576.90
Step by Step Solution
- Step 1: Write the proportion equation
117,809.73 : 176,647.63 = 80,415.07 : x - Step 2: Convert to fraction form
117,809.73/176,647.63 = 80,415.07/x - Step 3: Cross multiply
117,809.73x = 176,647.63 × 80,415.07 - Step 4: Simplify right side
117,809.73x = 14,205,131,531.78 - Step 5: Solve for x
x = 14,205,131,531.78/117,809.73 - Step 6: Final answer
x = 120,576.90
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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.