Finding the Fourth Proportional to 143,481.14, 214,926.36 and 84,173.79
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Solution
The fourth proportional to 143,481.14, 214,926.36 and 84,173.79 is: 126,087.42
Step by Step Solution
- Step 1: Write the proportion equation
143,481.14 : 214,926.36 = 84,173.79 : x - Step 2: Convert to fraction form
143,481.14/214,926.36 = 84,173.79/x - Step 3: Cross multiply
143,481.14x = 214,926.36 × 84,173.79 - Step 4: Simplify right side
143,481.14x = 18,091,166,292.10 - Step 5: Solve for x
x = 18,091,166,292.10/143,481.14 - Step 6: Final answer
x = 126,087.42
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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.