Finding the Fourth Proportional to 195,553.70, 269,864.10 and 106,129.70
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Solution
The fourth proportional to 195,553.70, 269,864.10 and 106,129.70 is: 146,458.98
Step by Step Solution
- Step 1: Write the proportion equation
195,553.70 : 269,864.10 = 106,129.70 : x - Step 2: Convert to fraction form
195,553.70/269,864.10 = 106,129.70/x - Step 3: Cross multiply
195,553.70x = 269,864.10 × 106,129.70 - Step 4: Simplify right side
195,553.70x = 28,640,595,973.77 - Step 5: Solve for x
x = 28,640,595,973.77/195,553.70 - Step 6: Final answer
x = 146,458.98
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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.