Finding the Fourth Proportional to 126,997.44, 175,252.32 and 76,687.68
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Solution
The fourth proportional to 126,997.44, 175,252.32 and 76,687.68 is: 105,826.49
Step by Step Solution
- Step 1: Write the proportion equation
126,997.44 : 175,252.32 = 76,687.68 : x - Step 2: Convert to fraction form
126,997.44/175,252.32 = 76,687.68/x - Step 3: Cross multiply
126,997.44x = 175,252.32 × 76,687.68 - Step 4: Simplify right side
126,997.44x = 13,439,693,835.42 - Step 5: Solve for x
x = 13,439,693,835.42/126,997.44 - Step 6: Final answer
x = 105,826.49
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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.