Finding the Fourth Proportional to 139,714.96, 192,847.36 and 91,323.92
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Solution
The fourth proportional to 139,714.96, 192,847.36 and 91,323.92 is: 126,053.62
Step by Step Solution
- Step 1: Write the proportion equation
139,714.96 : 192,847.36 = 91,323.92 : x - Step 2: Convert to fraction form
139,714.96/192,847.36 = 91,323.92/x - Step 3: Cross multiply
139,714.96x = 192,847.36 × 91,323.92 - Step 4: Simplify right side
139,714.96x = 17,611,576,876.85 - Step 5: Solve for x
x = 17,611,576,876.85/139,714.96 - Step 6: Final answer
x = 126,053.62
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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.