Finding the Fourth Proportional to 117,879.36, 162,676.65 and 64,167.99
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Solution
The fourth proportional to 117,879.36, 162,676.65 and 64,167.99 is: 88,553.53
Step by Step Solution
- Step 1: Write the proportion equation
117,879.36 : 162,676.65 = 64,167.99 : x - Step 2: Convert to fraction form
117,879.36/162,676.65 = 64,167.99/x - Step 3: Cross multiply
117,879.36x = 162,676.65 × 64,167.99 - Step 4: Simplify right side
117,879.36x = 10,438,633,650.43 - Step 5: Solve for x
x = 10,438,633,650.43/117,879.36 - Step 6: Final answer
x = 88,553.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.