Finding the Fourth Proportional to 126,227.97, 174,257.73 and 78,496.70
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Solution
The fourth proportional to 126,227.97, 174,257.73 and 78,496.70 is: 108,364.70
Step by Step Solution
- Step 1: Write the proportion equation
126,227.97 : 174,257.73 = 78,496.70 : x - Step 2: Convert to fraction form
126,227.97/174,257.73 = 78,496.70/x - Step 3: Cross multiply
126,227.97x = 174,257.73 × 78,496.70 - Step 4: Simplify right side
126,227.97x = 13,678,655,883.20 - Step 5: Solve for x
x = 13,678,655,883.20/126,227.97 - Step 6: Final answer
x = 108,364.70
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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.