Finding the Fourth Proportional to 161,021.16, 241,163.88 and 76,840.44
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Solution
The fourth proportional to 161,021.16, 241,163.88 and 76,840.44 is: 115,085.11
Step by Step Solution
- Step 1: Write the proportion equation
161,021.16 : 241,163.88 = 76,840.44 : x - Step 2: Convert to fraction form
161,021.16/241,163.88 = 76,840.44/x - Step 3: Cross multiply
161,021.16x = 241,163.88 × 76,840.44 - Step 4: Simplify right side
161,021.16x = 18,531,138,651.31 - Step 5: Solve for x
x = 18,531,138,651.31/161,021.16 - Step 6: Final answer
x = 115,085.11
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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.