Finding the Fourth Proportional to 126,893.97, 190,320.30 and 47,989.44
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Solution
The fourth proportional to 126,893.97, 190,320.30 and 47,989.44 is: 71,976.35
Step by Step Solution
- Step 1: Write the proportion equation
126,893.97 : 190,320.30 = 47,989.44 : x - Step 2: Convert to fraction form
126,893.97/190,320.30 = 47,989.44/x - Step 3: Cross multiply
126,893.97x = 190,320.30 × 47,989.44 - Step 4: Simplify right side
126,893.97x = 9,133,364,617.63 - Step 5: Solve for x
x = 9,133,364,617.63/126,893.97 - Step 6: Final answer
x = 71,976.35
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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.