Finding the Fourth Proportional to 163,338.99, 225,392.40 and 91,705.02
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Solution
The fourth proportional to 163,338.99, 225,392.40 and 91,705.02 is: 126,544.28
Step by Step Solution
- Step 1: Write the proportion equation
163,338.99 : 225,392.40 = 91,705.02 : x - Step 2: Convert to fraction form
163,338.99/225,392.40 = 91,705.02/x - Step 3: Cross multiply
163,338.99x = 225,392.40 × 91,705.02 - Step 4: Simplify right side
163,338.99x = 20,669,614,549.85 - Step 5: Solve for x
x = 20,669,614,549.85/163,338.99 - Step 6: Final answer
x = 126,544.28
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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.