Finding the Fourth Proportional to 129,827.13, 179,161.97 and 70,211.13
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Solution
The fourth proportional to 129,827.13, 179,161.97 and 70,211.13 is: 96,891.65
Step by Step Solution
- Step 1: Write the proportion equation
129,827.13 : 179,161.97 = 70,211.13 : x - Step 2: Convert to fraction form
129,827.13/179,161.97 = 70,211.13/x - Step 3: Cross multiply
129,827.13x = 179,161.97 × 70,211.13 - Step 4: Simplify right side
129,827.13x = 12,579,164,366.73 - Step 5: Solve for x
x = 12,579,164,366.73/129,827.13 - Step 6: Final answer
x = 96,891.65
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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.