Finding the Fourth Proportional to 126,566.73, 189,756.36 and 76,635.09
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Solution
The fourth proportional to 126,566.73, 189,756.36 and 76,635.09 is: 114,895.88
Step by Step Solution
- Step 1: Write the proportion equation
126,566.73 : 189,756.36 = 76,635.09 : x - Step 2: Convert to fraction form
126,566.73/189,756.36 = 76,635.09/x - Step 3: Cross multiply
126,566.73x = 189,756.36 × 76,635.09 - Step 4: Simplify right side
126,566.73x = 14,541,995,726.67 - Step 5: Solve for x
x = 14,541,995,726.67/126,566.73 - Step 6: Final answer
x = 114,895.88
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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.