Finding the Fourth Proportional to 127,890.24, 176,493.60 and 71,311.68
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Solution
The fourth proportional to 127,890.24, 176,493.60 and 71,311.68 is: 98,412.94
Step by Step Solution
- Step 1: Write the proportion equation
127,890.24 : 176,493.60 = 71,311.68 : x - Step 2: Convert to fraction form
127,890.24/176,493.60 = 71,311.68/x - Step 3: Cross multiply
127,890.24x = 176,493.60 × 71,311.68 - Step 4: Simplify right side
127,890.24x = 12,586,055,125.25 - Step 5: Solve for x
x = 12,586,055,125.25/127,890.24 - Step 6: Final answer
x = 98,412.94
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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.