Finding the Fourth Proportional to 163,252.91, 225,276.65 and 91,619.09
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Solution
The fourth proportional to 163,252.91, 225,276.65 and 91,619.09 is: 126,427.40
Step by Step Solution
- Step 1: Write the proportion equation
163,252.91 : 225,276.65 = 91,619.09 : x - Step 2: Convert to fraction form
163,252.91/225,276.65 = 91,619.09/x - Step 3: Cross multiply
163,252.91x = 225,276.65 × 91,619.09 - Step 4: Simplify right side
163,252.91x = 20,639,640,544.87 - Step 5: Solve for x
x = 20,639,640,544.87/163,252.91 - Step 6: Final answer
x = 126,427.40
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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.