Finding the Fourth Proportional to 115,768.36, 159,693.42 and 68,011.84
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Solution
The fourth proportional to 115,768.36, 159,693.42 and 68,011.84 is: 93,817.03
Step by Step Solution
- Step 1: Write the proportion equation
115,768.36 : 159,693.42 = 68,011.84 : x - Step 2: Convert to fraction form
115,768.36/159,693.42 = 68,011.84/x - Step 3: Cross multiply
115,768.36x = 159,693.42 × 68,011.84 - Step 4: Simplify right side
115,768.36x = 10,861,043,330.09 - Step 5: Solve for x
x = 10,861,043,330.09/115,768.36 - Step 6: Final answer
x = 93,817.03
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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.