Finding the Fourth Proportional to 126,687.90, 174,826.59 and 69,326.99
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Solution
The fourth proportional to 126,687.90, 174,826.59 and 69,326.99 is: 95,669.76
Step by Step Solution
- Step 1: Write the proportion equation
126,687.90 : 174,826.59 = 69,326.99 : x - Step 2: Convert to fraction form
126,687.90/174,826.59 = 69,326.99/x - Step 3: Cross multiply
126,687.90x = 174,826.59 × 69,326.99 - Step 4: Simplify right side
126,687.90x = 12,120,200,778.15 - Step 5: Solve for x
x = 12,120,200,778.15/126,687.90 - Step 6: Final answer
x = 95,669.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.