Finding the Fourth Proportional to 117,481.97, 162,120.78 and 63,765.84
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Solution
The fourth proportional to 117,481.97, 162,120.78 and 63,765.84 is: 87,994.50
Step by Step Solution
- Step 1: Write the proportion equation
117,481.97 : 162,120.78 = 63,765.84 : x - Step 2: Convert to fraction form
117,481.97/162,120.78 = 63,765.84/x - Step 3: Cross multiply
117,481.97x = 162,120.78 × 63,765.84 - Step 4: Simplify right side
117,481.97x = 10,337,767,718.16 - Step 5: Solve for x
x = 10,337,767,718.16/117,481.97 - Step 6: Final answer
x = 87,994.50
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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.