Finding the Fourth Proportional to 117,418.26, 162,035.74 and 63,702.88
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Solution
The fourth proportional to 117,418.26, 162,035.74 and 63,702.88 is: 87,909.19
Step by Step Solution
- Step 1: Write the proportion equation
117,418.26 : 162,035.74 = 63,702.88 : x - Step 2: Convert to fraction form
117,418.26/162,035.74 = 63,702.88/x - Step 3: Cross multiply
117,418.26x = 162,035.74 × 63,702.88 - Step 4: Simplify right side
117,418.26x = 10,322,143,431.20 - Step 5: Solve for x
x = 10,322,143,431.20/117,418.26 - Step 6: Final answer
x = 87,909.19
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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.