Finding the Fourth Proportional to 140,270.41, 193,571.70 and 76,608.19
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Solution
The fourth proportional to 140,270.41, 193,571.70 and 76,608.19 is: 105,718.50
Step by Step Solution
- Step 1: Write the proportion equation
140,270.41 : 193,571.70 = 76,608.19 : x - Step 2: Convert to fraction form
140,270.41/193,571.70 = 76,608.19/x - Step 3: Cross multiply
140,270.41x = 193,571.70 × 76,608.19 - Step 4: Simplify right side
140,270.41x = 14,829,177,572.22 - Step 5: Solve for x
x = 14,829,177,572.22/140,270.41 - Step 6: Final answer
x = 105,718.50
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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.