Finding the Fourth Proportional to 146,391.60, 202,021.12 and 79,323.60
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Solution
The fourth proportional to 146,391.60, 202,021.12 and 79,323.60 is: 109,466.95
Step by Step Solution
- Step 1: Write the proportion equation
146,391.60 : 202,021.12 = 79,323.60 : x - Step 2: Convert to fraction form
146,391.60/202,021.12 = 79,323.60/x - Step 3: Cross multiply
146,391.60x = 202,021.12 × 79,323.60 - Step 4: Simplify right side
146,391.60x = 16,025,042,514.43 - Step 5: Solve for x
x = 16,025,042,514.43/146,391.60 - Step 6: Final answer
x = 109,466.95
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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.