Finding the Fourth Proportional to 117,706.26, 162,431.25 and 66,723.70
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Solution
The fourth proportional to 117,706.26, 162,431.25 and 66,723.70 is: 92,076.79
Step by Step Solution
- Step 1: Write the proportion equation
117,706.26 : 162,431.25 = 66,723.70 : x - Step 2: Convert to fraction form
117,706.26/162,431.25 = 66,723.70/x - Step 3: Cross multiply
117,706.26x = 162,431.25 × 66,723.70 - Step 4: Simplify right side
117,706.26x = 10,838,013,995.63 - Step 5: Solve for x
x = 10,838,013,995.63/117,706.26 - Step 6: Final answer
x = 92,076.79
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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.