Finding the Fourth Proportional to 146,518.16, 202,185.27 and 81,976.19
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Solution
The fourth proportional to 146,518.16, 202,185.27 and 81,976.19 is: 113,121.66
Step by Step Solution
- Step 1: Write the proportion equation
146,518.16 : 202,185.27 = 81,976.19 : x - Step 2: Convert to fraction form
146,518.16/202,185.27 = 81,976.19/x - Step 3: Cross multiply
146,518.16x = 202,185.27 × 81,976.19 - Step 4: Simplify right side
146,518.16x = 16,574,377,097.80 - Step 5: Solve for x
x = 16,574,377,097.80/146,518.16 - Step 6: Final answer
x = 113,121.66
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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.