Finding the Fourth Proportional to 117,333.75, 161,920.43 and 63,618.68
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Solution
The fourth proportional to 117,333.75, 161,920.43 and 63,618.68 is: 87,793.70
Step by Step Solution
- Step 1: Write the proportion equation
117,333.75 : 161,920.43 = 63,618.68 : x - Step 2: Convert to fraction form
117,333.75/161,920.43 = 63,618.68/x - Step 3: Cross multiply
117,333.75x = 161,920.43 × 63,618.68 - Step 4: Simplify right side
117,333.75x = 10,301,164,346.91 - Step 5: Solve for x
x = 10,301,164,346.91/117,333.75 - Step 6: Final answer
x = 87,793.70
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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.