Finding the Fourth Proportional to 163,163.88, 225,169.62 and 91,549.08
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Solution
The fourth proportional to 163,163.88, 225,169.62 and 91,549.08 is: 126,339.67
Step by Step Solution
- Step 1: Write the proportion equation
163,163.88 : 225,169.62 = 91,549.08 : x - Step 2: Convert to fraction form
163,163.88/225,169.62 = 91,549.08/x - Step 3: Cross multiply
163,163.88x = 225,169.62 × 91,549.08 - Step 4: Simplify right side
163,163.88x = 20,614,071,554.95 - Step 5: Solve for x
x = 20,614,071,554.95/163,163.88 - Step 6: Final answer
x = 126,339.67
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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.