Finding the Fourth Proportional to 105,616.26, 158,431.68 and 30,737.03
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Solution
The fourth proportional to 105,616.26, 158,431.68 and 30,737.03 is: 46,107.66
Step by Step Solution
- Step 1: Write the proportion equation
105,616.26 : 158,431.68 = 30,737.03 : x - Step 2: Convert to fraction form
105,616.26/158,431.68 = 30,737.03/x - Step 3: Cross multiply
105,616.26x = 158,431.68 × 30,737.03 - Step 4: Simplify right side
105,616.26x = 4,869,718,508.95 - Step 5: Solve for x
x = 4,869,718,508.95/105,616.26 - Step 6: Final answer
x = 46,107.66
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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.