Finding the Fourth Proportional to 128,107.06, 192,277.19 and 68,185.84
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Solution
The fourth proportional to 128,107.06, 192,277.19 and 68,185.84 is: 102,340.82
Step by Step Solution
- Step 1: Write the proportion equation
128,107.06 : 192,277.19 = 68,185.84 : x - Step 2: Convert to fraction form
128,107.06/192,277.19 = 68,185.84/x - Step 3: Cross multiply
128,107.06x = 192,277.19 × 68,185.84 - Step 4: Simplify right side
128,107.06x = 13,110,581,712.99 - Step 5: Solve for x
x = 13,110,581,712.99/128,107.06 - Step 6: Final answer
x = 102,340.82
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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.