Finding the Fourth Proportional to 117,110.49, 161,552.82 and 71,157.75
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Solution
The fourth proportional to 117,110.49, 161,552.82 and 71,157.75 is: 98,161.45
Step by Step Solution
- Step 1: Write the proportion equation
117,110.49 : 161,552.82 = 71,157.75 : x - Step 2: Convert to fraction form
117,110.49/161,552.82 = 71,157.75/x - Step 3: Cross multiply
117,110.49x = 161,552.82 × 71,157.75 - Step 4: Simplify right side
117,110.49x = 11,495,735,177.36 - Step 5: Solve for x
x = 11,495,735,177.36/117,110.49 - Step 6: Final answer
x = 98,161.45
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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.