Finding the Fourth Proportional to 163,689.44, 225,893.76 and 96,621.44
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Solution
The fourth proportional to 163,689.44, 225,893.76 and 96,621.44 is: 133,338.96
Step by Step Solution
- Step 1: Write the proportion equation
163,689.44 : 225,893.76 = 96,621.44 : x - Step 2: Convert to fraction form
163,689.44/225,893.76 = 96,621.44/x - Step 3: Cross multiply
163,689.44x = 225,893.76 × 96,621.44 - Step 4: Simplify right side
163,689.44x = 21,826,180,378.21 - Step 5: Solve for x
x = 21,826,180,378.21/163,689.44 - Step 6: Final answer
x = 133,338.96
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1.5x scale
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.