Finding the Fourth Proportional to 102,586.10, 153,880.97 and 55,239.98
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Solution
The fourth proportional to 102,586.10, 153,880.97 and 55,239.98 is: 82,860.94
Step by Step Solution
- Step 1: Write the proportion equation
102,586.10 : 153,880.97 = 55,239.98 : x - Step 2: Convert to fraction form
102,586.10/153,880.97 = 55,239.98/x - Step 3: Cross multiply
102,586.10x = 153,880.97 × 55,239.98 - Step 4: Simplify right side
102,586.10x = 8,500,380,659.58 - Step 5: Solve for x
x = 8,500,380,659.58/102,586.10 - Step 6: Final answer
x = 82,860.94
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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.