Finding the Fourth Proportional to 163,296.09, 225,331.20 and 91,683.99
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Solution
The fourth proportional to 163,296.09, 225,331.20 and 91,683.99 is: 126,514.13
Step by Step Solution
- Step 1: Write the proportion equation
163,296.09 : 225,331.20 = 91,683.99 : x - Step 2: Convert to fraction form
163,296.09/225,331.20 = 91,683.99/x - Step 3: Cross multiply
163,296.09x = 225,331.20 × 91,683.99 - Step 4: Simplify right side
163,296.09x = 20,659,263,487.49 - Step 5: Solve for x
x = 20,659,263,487.49/163,296.09 - Step 6: Final answer
x = 126,514.13
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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.