Finding the Fourth Proportional to 122,299.20, 168,768.72 and 68,592.96
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Solution
The fourth proportional to 122,299.20, 168,768.72 and 68,592.96 is: 94,655.94
Step by Step Solution
- Step 1: Write the proportion equation
122,299.20 : 168,768.72 = 68,592.96 : x - Step 2: Convert to fraction form
122,299.20/168,768.72 = 68,592.96/x - Step 3: Cross multiply
122,299.20x = 168,768.72 × 68,592.96 - Step 4: Simplify right side
122,299.20x = 11,576,346,060.21 - Step 5: Solve for x
x = 11,576,346,060.21/122,299.20 - Step 6: Final answer
x = 94,655.94
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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.