Finding the Fourth Proportional to 143,104.80, 214,657.20 and 129,326.70
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Solution
The fourth proportional to 143,104.80, 214,657.20 and 129,326.70 is: 193,990.05
Step by Step Solution
- Step 1: Write the proportion equation
143,104.80 : 214,657.20 = 129,326.70 : x - Step 2: Convert to fraction form
143,104.80/214,657.20 = 129,326.70/x - Step 3: Cross multiply
143,104.80x = 214,657.20 × 129,326.70 - Step 4: Simplify right side
143,104.80x = 27,760,907,307.24 - Step 5: Solve for x
x = 27,760,907,307.24/143,104.80 - Step 6: Final answer
x = 193,990.05
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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.