Finding the Fourth Proportional to 146,651.18, 202,378.62 and 79,583.18
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Solution
The fourth proportional to 146,651.18, 202,378.62 and 79,583.18 is: 109,824.78
Step by Step Solution
- Step 1: Write the proportion equation
146,651.18 : 202,378.62 = 79,583.18 : x - Step 2: Convert to fraction form
146,651.18/202,378.62 = 79,583.18/x - Step 3: Cross multiply
146,651.18x = 202,378.62 × 79,583.18 - Step 4: Simplify right side
146,651.18x = 16,105,934,143.61 - Step 5: Solve for x
x = 16,105,934,143.61/146,651.18 - Step 6: Final answer
x = 109,824.78
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1.5x scale
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.