Finding the Fourth Proportional to 96,680.75, 145,127.09 and 76,817.93
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Solution
The fourth proportional to 96,680.75, 145,127.09 and 76,817.93 is: 115,311.09
Step by Step Solution
- Step 1: Write the proportion equation
96,680.75 : 145,127.09 = 76,817.93 : x - Step 2: Convert to fraction form
96,680.75/145,127.09 = 76,817.93/x - Step 3: Cross multiply
96,680.75x = 145,127.09 × 76,817.93 - Step 4: Simplify right side
96,680.75x = 11,148,362,107.13 - Step 5: Solve for x
x = 11,148,362,107.13/96,680.75 - Step 6: Final answer
x = 115,311.09
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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.