Finding the Fourth Proportional to 84,769.10, 127,186.05 and 83,440.70
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Solution
The fourth proportional to 84,769.10, 127,186.05 and 83,440.70 is: 125,192.94
Step by Step Solution
- Step 1: Write the proportion equation
84,769.10 : 127,186.05 = 83,440.70 : x - Step 2: Convert to fraction form
84,769.10/127,186.05 = 83,440.70/x - Step 3: Cross multiply
84,769.10x = 127,186.05 × 83,440.70 - Step 4: Simplify right side
84,769.10x = 10,612,493,042.24 - Step 5: Solve for x
x = 10,612,493,042.24/84,769.10 - Step 6: Final answer
x = 125,192.94
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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.