Finding the Fourth Proportional to 84,516.88, 126,902.16 and 80,454.17
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Solution
The fourth proportional to 84,516.88, 126,902.16 and 80,454.17 is: 120,801.99
Step by Step Solution
- Step 1: Write the proportion equation
84,516.88 : 126,902.16 = 80,454.17 : x - Step 2: Convert to fraction form
84,516.88/126,902.16 = 80,454.17/x - Step 3: Cross multiply
84,516.88x = 126,902.16 × 80,454.17 - Step 4: Simplify right side
84,516.88x = 10,209,806,917.23 - Step 5: Solve for x
x = 10,209,806,917.23/84,516.88 - Step 6: Final answer
x = 120,801.99
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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.