Finding the Fourth Proportional to 137,877.09, 206,990.63 and 117,231.81
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Solution
The fourth proportional to 137,877.09, 206,990.63 and 117,231.81 is: 175,996.50
Step by Step Solution
- Step 1: Write the proportion equation
137,877.09 : 206,990.63 = 117,231.81 : x - Step 2: Convert to fraction form
137,877.09/206,990.63 = 117,231.81/x - Step 3: Cross multiply
137,877.09x = 206,990.63 × 117,231.81 - Step 4: Simplify right side
137,877.09x = 24,265,885,621.78 - Step 5: Solve for x
x = 24,265,885,621.78/137,877.09 - Step 6: Final answer
x = 175,996.50
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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.