Finding the Fourth Proportional to 117,331.41, 161,916.57 and 63,616.26
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Solution
The fourth proportional to 117,331.41, 161,916.57 and 63,616.26 is: 87,790.02
Step by Step Solution
- Step 1: Write the proportion equation
117,331.41 : 161,916.57 = 63,616.26 : x - Step 2: Convert to fraction form
117,331.41/161,916.57 = 63,616.26/x - Step 3: Cross multiply
117,331.41x = 161,916.57 × 63,616.26 - Step 4: Simplify right side
117,331.41x = 10,300,526,615.43 - Step 5: Solve for x
x = 10,300,526,615.43/117,331.41 - Step 6: Final answer
x = 87,790.02
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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.