Finding the Fourth Proportional to 140,204.63, 193,486.46 and 76,546.53
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Solution
The fourth proportional to 140,204.63, 193,486.46 and 76,546.53 is: 105,636.43
Step by Step Solution
- Step 1: Write the proportion equation
140,204.63 : 193,486.46 = 76,546.53 : x - Step 2: Convert to fraction form
140,204.63/193,486.46 = 76,546.53/x - Step 3: Cross multiply
140,204.63x = 193,486.46 × 76,546.53 - Step 4: Simplify right side
140,204.63x = 14,810,716,732.25 - Step 5: Solve for x
x = 14,810,716,732.25/140,204.63 - Step 6: Final answer
x = 105,636.43
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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.