Finding the Fourth Proportional to 137,201.20, 205,816.56 and 43,685.08
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Solution
The fourth proportional to 137,201.20, 205,816.56 and 43,685.08 is: 65,532.32
Step by Step Solution
- Step 1: Write the proportion equation
137,201.20 : 205,816.56 = 43,685.08 : x - Step 2: Convert to fraction form
137,201.20/205,816.56 = 43,685.08/x - Step 3: Cross multiply
137,201.20x = 205,816.56 × 43,685.08 - Step 4: Simplify right side
137,201.20x = 8,991,112,888.92 - Step 5: Solve for x
x = 8,991,112,888.92/137,201.20 - Step 6: Final answer
x = 65,532.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.