Finding the Fourth Proportional to 159,647.92, 220,313.74 and 88,029.08
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Solution
The fourth proportional to 159,647.92, 220,313.74 and 88,029.08 is: 121,479.92
Step by Step Solution
- Step 1: Write the proportion equation
159,647.92 : 220,313.74 = 88,029.08 : x - Step 2: Convert to fraction form
159,647.92/220,313.74 = 88,029.08/x - Step 3: Cross multiply
159,647.92x = 220,313.74 × 88,029.08 - Step 4: Simplify right side
159,647.92x = 19,394,015,843.56 - Step 5: Solve for x
x = 19,394,015,843.56/159,647.92 - Step 6: Final answer
x = 121,479.92
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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.