Finding the Fourth Proportional to 128,106.06, 192,275.69 and 68,184.84
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Solution
The fourth proportional to 128,106.06, 192,275.69 and 68,184.84 is: 102,339.32
Step by Step Solution
- Step 1: Write the proportion equation
128,106.06 : 192,275.69 = 68,184.84 : x - Step 2: Convert to fraction form
128,106.06/192,275.69 = 68,184.84/x - Step 3: Cross multiply
128,106.06x = 192,275.69 × 68,184.84 - Step 4: Simplify right side
128,106.06x = 13,110,287,158.54 - Step 5: Solve for x
x = 13,110,287,158.54/128,106.06 - Step 6: Final answer
x = 102,339.32
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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.