Finding the Fourth Proportional to 126,968.58, 190,540.35 and 56,926.26
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Solution
The fourth proportional to 126,968.58, 190,540.35 and 56,926.26 is: 85,428.61
Step by Step Solution
- Step 1: Write the proportion equation
126,968.58 : 190,540.35 = 56,926.26 : x - Step 2: Convert to fraction form
126,968.58/190,540.35 = 56,926.26/x - Step 3: Cross multiply
126,968.58x = 190,540.35 × 56,926.26 - Step 4: Simplify right side
126,968.58x = 10,846,749,504.59 - Step 5: Solve for x
x = 10,846,749,504.59/126,968.58 - Step 6: Final answer
x = 85,428.61
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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.