Finding the Fourth Proportional to 117,257.62, 161,852.25 and 74,816.08
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Solution
The fourth proportional to 117,257.62, 161,852.25 and 74,816.08 is: 103,269.63
Step by Step Solution
- Step 1: Write the proportion equation
117,257.62 : 161,852.25 = 74,816.08 : x - Step 2: Convert to fraction form
117,257.62/161,852.25 = 74,816.08/x - Step 3: Cross multiply
117,257.62x = 161,852.25 × 74,816.08 - Step 4: Simplify right side
117,257.62x = 12,109,150,884.18 - Step 5: Solve for x
x = 12,109,150,884.18/117,257.62 - Step 6: Final answer
x = 103,269.63
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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.