Finding the Fourth Proportional to 126,996.16, 190,405.68 and 55,884.64
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Solution
The fourth proportional to 126,996.16, 190,405.68 and 55,884.64 is: 83,787.99
Step by Step Solution
- Step 1: Write the proportion equation
126,996.16 : 190,405.68 = 55,884.64 : x - Step 2: Convert to fraction form
126,996.16/190,405.68 = 55,884.64/x - Step 3: Cross multiply
126,996.16x = 190,405.68 × 55,884.64 - Step 4: Simplify right side
126,996.16x = 10,640,752,880.76 - Step 5: Solve for x
x = 10,640,752,880.76/126,996.16 - Step 6: Final answer
x = 83,787.99
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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.