Finding the Fourth Proportional to 126,158.99, 189,024.26 and 76,133.97
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Solution
The fourth proportional to 126,158.99, 189,024.26 and 76,133.97 is: 114,071.68
Step by Step Solution
- Step 1: Write the proportion equation
126,158.99 : 189,024.26 = 76,133.97 : x - Step 2: Convert to fraction form
126,158.99/189,024.26 = 76,133.97/x - Step 3: Cross multiply
126,158.99x = 189,024.26 × 76,133.97 - Step 4: Simplify right side
126,158.99x = 14,391,167,340.11 - Step 5: Solve for x
x = 14,391,167,340.11/126,158.99 - Step 6: Final answer
x = 114,071.68
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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.