Finding the Fourth Proportional to 121,316.96, 167,487.26 and 92,409.68
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Solution
The fourth proportional to 121,316.96, 167,487.26 and 92,409.68 is: 127,578.56
Step by Step Solution
- Step 1: Write the proportion equation
121,316.96 : 167,487.26 = 92,409.68 : x - Step 2: Convert to fraction form
121,316.96/167,487.26 = 92,409.68/x - Step 3: Cross multiply
121,316.96x = 167,487.26 × 92,409.68 - Step 4: Simplify right side
121,316.96x = 15,477,442,801.19 - Step 5: Solve for x
x = 15,477,442,801.19/121,316.96 - Step 6: Final answer
x = 127,578.56
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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.