Finding the Fourth Proportional to 106,163.80, 159,220.08 and 31,263.60
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Solution
The fourth proportional to 106,163.80, 159,220.08 and 31,263.60 is: 46,887.86
Step by Step Solution
- Step 1: Write the proportion equation
106,163.80 : 159,220.08 = 31,263.60 : x - Step 2: Convert to fraction form
106,163.80/159,220.08 = 31,263.60/x - Step 3: Cross multiply
106,163.80x = 159,220.08 × 31,263.60 - Step 4: Simplify right side
106,163.80x = 4,977,792,893.09 - Step 5: Solve for x
x = 4,977,792,893.09/106,163.80 - Step 6: Final answer
x = 46,887.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.