Finding the Fourth Proportional to 126,160.97, 189,027.22 and 76,135.95
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Solution
The fourth proportional to 126,160.97, 189,027.22 and 76,135.95 is: 114,074.64
Step by Step Solution
- Step 1: Write the proportion equation
126,160.97 : 189,027.22 = 76,135.95 : x - Step 2: Convert to fraction form
126,160.97/189,027.22 = 76,135.95/x - Step 3: Cross multiply
126,160.97x = 189,027.22 × 76,135.95 - Step 4: Simplify right side
126,160.97x = 14,391,766,970.56 - Step 5: Solve for x
x = 14,391,766,970.56/126,160.97 - Step 6: Final answer
x = 114,074.64
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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.