Finding the Fourth Proportional to 126,567.23, 189,757.11 and 76,635.59
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Solution
The fourth proportional to 126,567.23, 189,757.11 and 76,635.59 is: 114,896.63
Step by Step Solution
- Step 1: Write the proportion equation
126,567.23 : 189,757.11 = 76,635.59 : x - Step 2: Convert to fraction form
126,567.23/189,757.11 = 76,635.59/x - Step 3: Cross multiply
126,567.23x = 189,757.11 × 76,635.59 - Step 4: Simplify right side
126,567.23x = 14,542,148,081.54 - Step 5: Solve for x
x = 14,542,148,081.54/126,567.23 - Step 6: Final answer
x = 114,896.63
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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.