Finding the Fourth Proportional to 126,238.21, 189,176.88 and 92,695.09
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Solution
The fourth proportional to 126,238.21, 189,176.88 and 92,695.09 is: 138,910.14
Step by Step Solution
- Step 1: Write the proportion equation
126,238.21 : 189,176.88 = 92,695.09 : x - Step 2: Convert to fraction form
126,238.21/189,176.88 = 92,695.09/x - Step 3: Cross multiply
126,238.21x = 189,176.88 × 92,695.09 - Step 4: Simplify right side
126,238.21x = 17,535,767,917.52 - Step 5: Solve for x
x = 17,535,767,917.52/126,238.21 - Step 6: Final answer
x = 138,910.14
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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.