Finding the Fourth Proportional to 117,107.35, 161,608.16 and 63,392.80
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Solution
The fourth proportional to 117,107.35, 161,608.16 and 63,392.80 is: 87,482.07
Step by Step Solution
- Step 1: Write the proportion equation
117,107.35 : 161,608.16 = 63,392.80 : x - Step 2: Convert to fraction form
117,107.35/161,608.16 = 63,392.80/x - Step 3: Cross multiply
117,107.35x = 161,608.16 × 63,392.80 - Step 4: Simplify right side
117,107.35x = 10,244,793,765.25 - Step 5: Solve for x
x = 10,244,793,765.25/117,107.35 - Step 6: Final answer
x = 87,482.07
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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.