Finding the Fourth Proportional to 127,951.21, 176,572.91 and 71,366.23
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Solution
The fourth proportional to 127,951.21, 176,572.91 and 71,366.23 is: 98,485.53
Step by Step Solution
- Step 1: Write the proportion equation
127,951.21 : 176,572.91 = 71,366.23 : x - Step 2: Convert to fraction form
127,951.21/176,572.91 = 71,366.23/x - Step 3: Cross multiply
127,951.21x = 176,572.91 × 71,366.23 - Step 4: Simplify right side
127,951.21x = 12,601,342,906.83 - Step 5: Solve for x
x = 12,601,342,906.83/127,951.21 - Step 6: Final answer
x = 98,485.53
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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.