Finding the Fourth Proportional to 127,935.75, 191,588.25 and 80,432.99
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Solution
The fourth proportional to 127,935.75, 191,588.25 and 80,432.99 is: 120,451.21
Step by Step Solution
- Step 1: Write the proportion equation
127,935.75 : 191,588.25 = 80,432.99 : x - Step 2: Convert to fraction form
127,935.75/191,588.25 = 80,432.99/x - Step 3: Cross multiply
127,935.75x = 191,588.25 × 80,432.99 - Step 4: Simplify right side
127,935.75x = 15,410,015,394.20 - Step 5: Solve for x
x = 15,410,015,394.20/127,935.75 - Step 6: Final answer
x = 120,451.21
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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.