Finding the Fourth Proportional to 126,186.26, 189,092.37 and 51,215.19
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Solution
The fourth proportional to 126,186.26, 189,092.37 and 51,215.19 is: 76,746.88
Step by Step Solution
- Step 1: Write the proportion equation
126,186.26 : 189,092.37 = 51,215.19 : x - Step 2: Convert to fraction form
126,186.26/189,092.37 = 51,215.19/x - Step 3: Cross multiply
126,186.26x = 189,092.37 × 51,215.19 - Step 4: Simplify right side
126,186.26x = 9,684,401,140.06 - Step 5: Solve for x
x = 9,684,401,140.06/126,186.26 - Step 6: Final answer
x = 76,746.88
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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.