Finding the Fourth Proportional to 144,415.27, 216,729.35 and 68,514.09
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Solution
The fourth proportional to 144,415.27, 216,729.35 and 68,514.09 is: 102,821.64
Step by Step Solution
- Step 1: Write the proportion equation
144,415.27 : 216,729.35 = 68,514.09 : x - Step 2: Convert to fraction form
144,415.27/216,729.35 = 68,514.09/x - Step 3: Cross multiply
144,415.27x = 216,729.35 × 68,514.09 - Step 4: Simplify right side
144,415.27x = 14,849,014,191.54 - Step 5: Solve for x
x = 14,849,014,191.54/144,415.27 - Step 6: Final answer
x = 102,821.64
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1.5x scale
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.