Finding the Fourth Proportional to 117,474.21, 162,115.97 and 63,759.87
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Solution
The fourth proportional to 117,474.21, 162,115.97 and 63,759.87 is: 87,989.46
Step by Step Solution
- Step 1: Write the proportion equation
117,474.21 : 162,115.97 = 63,759.87 : x - Step 2: Convert to fraction form
117,474.21/162,115.97 = 63,759.87/x - Step 3: Cross multiply
117,474.21x = 162,115.97 × 63,759.87 - Step 4: Simplify right side
117,474.21x = 10,336,492,853.32 - Step 5: Solve for x
x = 10,336,492,853.32/117,474.21 - Step 6: Final answer
x = 87,989.46
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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.