Finding the Fourth Proportional to 146,428.44, 202,071.42 and 79,360.44
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Solution
The fourth proportional to 146,428.44, 202,071.42 and 79,360.44 is: 109,517.50
Step by Step Solution
- Step 1: Write the proportion equation
146,428.44 : 202,071.42 = 79,360.44 : x - Step 2: Convert to fraction form
146,428.44/202,071.42 = 79,360.44/x - Step 3: Cross multiply
146,428.44x = 202,071.42 × 79,360.44 - Step 4: Simplify right side
146,428.44x = 16,036,476,802.62 - Step 5: Solve for x
x = 16,036,476,802.62/146,428.44 - Step 6: Final answer
x = 109,517.50
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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.