Finding the Fourth Proportional to 116,021.57, 160,079.90 and 68,265.99
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Solution
The fourth proportional to 116,021.57, 160,079.90 and 68,265.99 is: 94,189.49
Step by Step Solution
- Step 1: Write the proportion equation
116,021.57 : 160,079.90 = 68,265.99 : x - Step 2: Convert to fraction form
116,021.57/160,079.90 = 68,265.99/x - Step 3: Cross multiply
116,021.57x = 160,079.90 × 68,265.99 - Step 4: Simplify right side
116,021.57x = 10,928,012,511.27 - Step 5: Solve for x
x = 10,928,012,511.27/116,021.57 - Step 6: Final answer
x = 94,189.49
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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.