Finding the Fourth Proportional to 141,797.05, 195,684.05 and 78,138.95
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Solution
The fourth proportional to 141,797.05, 195,684.05 and 78,138.95 is: 107,834.02
Step by Step Solution
- Step 1: Write the proportion equation
141,797.05 : 195,684.05 = 78,138.95 : x - Step 2: Convert to fraction form
141,797.05/195,684.05 = 78,138.95/x - Step 3: Cross multiply
141,797.05x = 195,684.05 × 78,138.95 - Step 4: Simplify right side
141,797.05x = 15,290,546,198.75 - Step 5: Solve for x
x = 15,290,546,198.75/141,797.05 - Step 6: Final answer
x = 107,834.02
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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.