Finding the Fourth Proportional to 106,993.36, 160,511.64 and 73,729.36
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Solution
The fourth proportional to 106,993.36, 160,511.64 and 73,729.36 is: 110,608.92
Step by Step Solution
- Step 1: Write the proportion equation
106,993.36 : 160,511.64 = 73,729.36 : x - Step 2: Convert to fraction form
106,993.36/160,511.64 = 73,729.36/x - Step 3: Cross multiply
106,993.36x = 160,511.64 × 73,729.36 - Step 4: Simplify right side
106,993.36x = 11,834,420,489.75 - Step 5: Solve for x
x = 11,834,420,489.75/106,993.36 - Step 6: Final answer
x = 110,608.92
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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.