Finding the Fourth Proportional to 127,712.97, 176,273.42 and 74,027.79
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Solution
The fourth proportional to 127,712.97, 176,273.42 and 74,027.79 is: 102,175.46
Step by Step Solution
- Step 1: Write the proportion equation
127,712.97 : 176,273.42 = 74,027.79 : x - Step 2: Convert to fraction form
127,712.97/176,273.42 = 74,027.79/x - Step 3: Cross multiply
127,712.97x = 176,273.42 × 74,027.79 - Step 4: Simplify right side
127,712.97x = 13,049,131,348.20 - Step 5: Solve for x
x = 13,049,131,348.20/127,712.97 - Step 6: Final answer
x = 102,175.46
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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.