Finding the Fourth Proportional to 145,163.84, 217,743.83 and 70,290.68
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Solution
The fourth proportional to 145,163.84, 217,743.83 and 70,290.68 is: 105,435.09
Step by Step Solution
- Step 1: Write the proportion equation
145,163.84 : 217,743.83 = 70,290.68 : x - Step 2: Convert to fraction form
145,163.84/217,743.83 = 70,290.68/x - Step 3: Cross multiply
145,163.84x = 217,743.83 × 70,290.68 - Step 4: Simplify right side
145,163.84x = 15,305,361,876.50 - Step 5: Solve for x
x = 15,305,361,876.50/145,163.84 - Step 6: Final answer
x = 105,435.09
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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.