Finding the Fourth Proportional to 116,634.95, 161,033.69 and 89,729.99
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Solution
The fourth proportional to 116,634.95, 161,033.69 and 89,729.99 is: 123,886.98
Step by Step Solution
- Step 1: Write the proportion equation
116,634.95 : 161,033.69 = 89,729.99 : x - Step 2: Convert to fraction form
116,634.95/161,033.69 = 89,729.99/x - Step 3: Cross multiply
116,634.95x = 161,033.69 × 89,729.99 - Step 4: Simplify right side
116,634.95x = 14,449,551,393.36 - Step 5: Solve for x
x = 14,449,551,393.36/116,634.95 - Step 6: Final answer
x = 123,886.98
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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.