Finding the Fourth Proportional to 163,786.50, 245,416.50 and 137,542.50
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Solution
The fourth proportional to 163,786.50, 245,416.50 and 137,542.50 is: 206,092.68
Step by Step Solution
- Step 1: Write the proportion equation
163,786.50 : 245,416.50 = 137,542.50 : x - Step 2: Convert to fraction form
163,786.50/245,416.50 = 137,542.50/x - Step 3: Cross multiply
163,786.50x = 245,416.50 × 137,542.50 - Step 4: Simplify right side
163,786.50x = 33,755,198,951.25 - Step 5: Solve for x
x = 33,755,198,951.25/163,786.50 - Step 6: Final answer
x = 206,092.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.