Finding the Fourth Proportional to 139,273.63, 192,197.07 and 75,611.41
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Solution
The fourth proportional to 139,273.63, 192,197.07 and 75,611.41 is: 104,343.45
Step by Step Solution
- Step 1: Write the proportion equation
139,273.63 : 192,197.07 = 75,611.41 : x - Step 2: Convert to fraction form
139,273.63/192,197.07 = 75,611.41/x - Step 3: Cross multiply
139,273.63x = 192,197.07 × 75,611.41 - Step 4: Simplify right side
139,273.63x = 14,532,290,980.08 - Step 5: Solve for x
x = 14,532,290,980.08/139,273.63 - Step 6: Final answer
x = 104,343.45
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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.