Finding the Fourth Proportional to 163,191.23, 225,203.28 and 91,571.08
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Solution
The fourth proportional to 163,191.23, 225,203.28 and 91,571.08 is: 126,367.74
Step by Step Solution
- Step 1: Write the proportion equation
163,191.23 : 225,203.28 = 91,571.08 : x - Step 2: Convert to fraction form
163,191.23/225,203.28 = 91,571.08/x - Step 3: Cross multiply
163,191.23x = 225,203.28 × 91,571.08 - Step 4: Simplify right side
163,191.23x = 20,622,106,443.13 - Step 5: Solve for x
x = 20,622,106,443.13/163,191.23 - Step 6: Final answer
x = 126,367.74
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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.