Finding the Fourth Proportional to 125,221.08, 172,804.75 and 67,861.99
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Solution
The fourth proportional to 125,221.08, 172,804.75 and 67,861.99 is: 93,649.36
Step by Step Solution
- Step 1: Write the proportion equation
125,221.08 : 172,804.75 = 67,861.99 : x - Step 2: Convert to fraction form
125,221.08/172,804.75 = 67,861.99/x - Step 3: Cross multiply
125,221.08x = 172,804.75 × 67,861.99 - Step 4: Simplify right side
125,221.08x = 11,726,874,216.45 - Step 5: Solve for x
x = 11,726,874,216.45/125,221.08 - Step 6: Final answer
x = 93,649.36
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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.