Finding the Fourth Proportional to 151,748.18, 209,413.22 and 83,763.92
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Solution
The fourth proportional to 151,748.18, 209,413.22 and 83,763.92 is: 115,594.62
Step by Step Solution
- Step 1: Write the proportion equation
151,748.18 : 209,413.22 = 83,763.92 : x - Step 2: Convert to fraction form
151,748.18/209,413.22 = 83,763.92/x - Step 3: Cross multiply
151,748.18x = 209,413.22 × 83,763.92 - Step 4: Simplify right side
151,748.18x = 17,541,273,018.49 - Step 5: Solve for x
x = 17,541,273,018.49/151,748.18 - Step 6: Final answer
x = 115,594.62
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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.