Finding the Fourth Proportional to 126,906.08, 190,201.16 and 81,808.52
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Solution
The fourth proportional to 126,906.08, 190,201.16 and 81,808.52 is: 122,610.95
Step by Step Solution
- Step 1: Write the proportion equation
126,906.08 : 190,201.16 = 81,808.52 : x - Step 2: Convert to fraction form
126,906.08/190,201.16 = 81,808.52/x - Step 3: Cross multiply
126,906.08x = 190,201.16 × 81,808.52 - Step 4: Simplify right side
126,906.08x = 15,560,074,655.40 - Step 5: Solve for x
x = 15,560,074,655.40/126,906.08 - Step 6: Final answer
x = 122,610.95
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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.