Finding the Fourth Proportional to 128,227.53, 192,396.66 and 69,051.41
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Solution
The fourth proportional to 128,227.53, 192,396.66 and 69,051.41 is: 103,606.92
Step by Step Solution
- Step 1: Write the proportion equation
128,227.53 : 192,396.66 = 69,051.41 : x - Step 2: Convert to fraction form
128,227.53/192,396.66 = 69,051.41/x - Step 3: Cross multiply
128,227.53x = 192,396.66 × 69,051.41 - Step 4: Simplify right side
128,227.53x = 13,285,259,690.31 - Step 5: Solve for x
x = 13,285,259,690.31/128,227.53 - Step 6: Final answer
x = 103,606.92
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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.