Finding the Fourth Proportional to 82,398.36, 122,537.49 and 79,773.96
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Solution
The fourth proportional to 82,398.36, 122,537.49 and 79,773.96 is: 118,634.65
Step by Step Solution
- Step 1: Write the proportion equation
82,398.36 : 122,537.49 = 79,773.96 : x - Step 2: Convert to fraction form
82,398.36/122,537.49 = 79,773.96/x - Step 3: Cross multiply
82,398.36x = 122,537.49 × 79,773.96 - Step 4: Simplify right side
82,398.36x = 9,775,300,825.76 - Step 5: Solve for x
x = 9,775,300,825.76/82,398.36 - Step 6: Final answer
x = 118,634.65
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.