Finding the Fourth Proportional to 118,920.07, 164,107.82 and 65,205.53
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Solution
The fourth proportional to 118,920.07, 164,107.82 and 65,205.53 is: 89,982.60
Step by Step Solution
- Step 1: Write the proportion equation
118,920.07 : 164,107.82 = 65,205.53 : x - Step 2: Convert to fraction form
118,920.07/164,107.82 = 65,205.53/x - Step 3: Cross multiply
118,920.07x = 164,107.82 × 65,205.53 - Step 4: Simplify right side
118,920.07x = 10,700,737,380.24 - Step 5: Solve for x
x = 10,700,737,380.24/118,920.07 - Step 6: Final answer
x = 89,982.60
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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.