Finding the Fourth Proportional to 140,458.63, 193,832.97 and 76,796.95
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Solution
The fourth proportional to 140,458.63, 193,832.97 and 76,796.95 is: 105,979.82
Step by Step Solution
- Step 1: Write the proportion equation
140,458.63 : 193,832.97 = 76,796.95 : x - Step 2: Convert to fraction form
140,458.63/193,832.97 = 76,796.95/x - Step 3: Cross multiply
140,458.63x = 193,832.97 × 76,796.95 - Step 4: Simplify right side
140,458.63x = 14,885,780,905.44 - Step 5: Solve for x
x = 14,885,780,905.44/140,458.63 - Step 6: Final answer
x = 105,979.82
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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.