Finding the Fourth Proportional to 159,107.22, 219,562.26 and 87,486.62
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Solution
The fourth proportional to 159,107.22, 219,562.26 and 87,486.62 is: 120,728.40
Step by Step Solution
- Step 1: Write the proportion equation
159,107.22 : 219,562.26 = 87,486.62 : x - Step 2: Convert to fraction form
159,107.22/219,562.26 = 87,486.62/x - Step 3: Cross multiply
159,107.22x = 219,562.26 × 87,486.62 - Step 4: Simplify right side
159,107.22x = 19,208,760,006.96 - Step 5: Solve for x
x = 19,208,760,006.96/159,107.22 - Step 6: Final answer
x = 120,728.40
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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.