Finding the Fourth Proportional to 117,573.87, 162,163.04 and 81,745.95
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Solution
The fourth proportional to 117,573.87, 162,163.04 and 81,745.95 is: 112,747.60
Step by Step Solution
- Step 1: Write the proportion equation
117,573.87 : 162,163.04 = 81,745.95 : x - Step 2: Convert to fraction form
117,573.87/162,163.04 = 81,745.95/x - Step 3: Cross multiply
117,573.87x = 162,163.04 × 81,745.95 - Step 4: Simplify right side
117,573.87x = 13,256,171,350.96 - Step 5: Solve for x
x = 13,256,171,350.96/117,573.87 - Step 6: Final answer
x = 112,747.60
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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.