Finding the Fourth Proportional to 112,571.18, 168,634.86 and 91,534.97
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Solution
The fourth proportional to 112,571.18, 168,634.86 and 91,534.97 is: 137,122.02
Step by Step Solution
- Step 1: Write the proportion equation
112,571.18 : 168,634.86 = 91,534.97 : x - Step 2: Convert to fraction form
112,571.18/168,634.86 = 91,534.97/x - Step 3: Cross multiply
112,571.18x = 168,634.86 × 91,534.97 - Step 4: Simplify right side
112,571.18x = 15,435,986,969.98 - Step 5: Solve for x
x = 15,435,986,969.98/112,571.18 - Step 6: Final answer
x = 137,122.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.