Finding the Fourth Proportional to 126,405.93, 174,435.60 and 69,816.09
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Solution
The fourth proportional to 126,405.93, 174,435.60 and 69,816.09 is: 96,343.67
Step by Step Solution
- Step 1: Write the proportion equation
126,405.93 : 174,435.60 = 69,816.09 : x - Step 2: Convert to fraction form
126,405.93/174,435.60 = 69,816.09/x - Step 3: Cross multiply
126,405.93x = 174,435.60 × 69,816.09 - Step 4: Simplify right side
126,405.93x = 12,178,411,548.80 - Step 5: Solve for x
x = 12,178,411,548.80/126,405.93 - Step 6: Final answer
x = 96,343.67
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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.