Finding the Fourth Proportional to 117,633.97, 162,316.60 and 69,886.09
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Solution
The fourth proportional to 117,633.97, 162,316.60 and 69,886.09 is: 96,431.94
Step by Step Solution
- Step 1: Write the proportion equation
117,633.97 : 162,316.60 = 69,886.09 : x - Step 2: Convert to fraction form
117,633.97/162,316.60 = 69,886.09/x - Step 3: Cross multiply
117,633.97x = 162,316.60 × 69,886.09 - Step 4: Simplify right side
117,633.97x = 11,343,672,516.09 - Step 5: Solve for x
x = 11,343,672,516.09/117,633.97 - Step 6: Final answer
x = 96,431.94
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1.5x scale
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.