Finding the Fourth Proportional to 112,431.68, 168,647.52 and 29,324.96
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Solution
The fourth proportional to 112,431.68, 168,647.52 and 29,324.96 is: 43,987.44
Step by Step Solution
- Step 1: Write the proportion equation
112,431.68 : 168,647.52 = 29,324.96 : x - Step 2: Convert to fraction form
112,431.68/168,647.52 = 29,324.96/x - Step 3: Cross multiply
112,431.68x = 168,647.52 × 29,324.96 - Step 4: Simplify right side
112,431.68x = 4,945,581,778.10 - Step 5: Solve for x
x = 4,945,581,778.10/112,431.68 - Step 6: Final answer
x = 43,987.44
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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.