Finding the Fourth Proportional to 119,163.05, 164,438.60 and 68,170.31
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Solution
The fourth proportional to 119,163.05, 164,438.60 and 68,170.31 is: 94,071.36
Step by Step Solution
- Step 1: Write the proportion equation
119,163.05 : 164,438.60 = 68,170.31 : x - Step 2: Convert to fraction form
119,163.05/164,438.60 = 68,170.31/x - Step 3: Cross multiply
119,163.05x = 164,438.60 × 68,170.31 - Step 4: Simplify right side
119,163.05x = 11,209,829,174.92 - Step 5: Solve for x
x = 11,209,829,174.92/119,163.05 - Step 6: Final answer
x = 94,071.36
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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.