Finding the Fourth Proportional to 159,609.80, 220,252.02 and 87,992.84
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Solution
The fourth proportional to 159,609.80, 220,252.02 and 87,992.84 is: 121,424.88
Step by Step Solution
- Step 1: Write the proportion equation
159,609.80 : 220,252.02 = 87,992.84 : x - Step 2: Convert to fraction form
159,609.80/220,252.02 = 87,992.84/x - Step 3: Cross multiply
159,609.80x = 220,252.02 × 87,992.84 - Step 4: Simplify right side
159,609.80x = 19,380,600,755.54 - Step 5: Solve for x
x = 19,380,600,755.54/159,609.80 - Step 6: Final answer
x = 121,424.88
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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.