Finding the Fourth Proportional to 163,542.26, 225,690.99 and 89,957.60
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Solution
The fourth proportional to 163,542.26, 225,690.99 and 89,957.60 is: 124,142.95
Step by Step Solution
- Step 1: Write the proportion equation
163,542.26 : 225,690.99 = 89,957.60 : x - Step 2: Convert to fraction form
163,542.26/225,690.99 = 89,957.60/x - Step 3: Cross multiply
163,542.26x = 225,690.99 × 89,957.60 - Step 4: Simplify right side
163,542.26x = 20,302,619,352.24 - Step 5: Solve for x
x = 20,302,619,352.24/163,542.26 - Step 6: Final answer
x = 124,142.95
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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.