Finding the Fourth Proportional to 137,933.75, 190,366.17 and 84,207.26
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Solution
The fourth proportional to 137,933.75, 190,366.17 and 84,207.26 is: 116,216.76
Step by Step Solution
- Step 1: Write the proportion equation
137,933.75 : 190,366.17 = 84,207.26 : x - Step 2: Convert to fraction form
137,933.75/190,366.17 = 84,207.26/x - Step 3: Cross multiply
137,933.75x = 190,366.17 × 84,207.26 - Step 4: Simplify right side
137,933.75x = 16,030,213,732.53 - Step 5: Solve for x
x = 16,030,213,732.53/137,933.75 - Step 6: Final answer
x = 116,216.76
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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.