Finding the Fourth Proportional to 104,986.08, 157,586.64 and 81,865.44
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Solution
The fourth proportional to 104,986.08, 157,586.64 and 81,865.44 is: 122,882.00
Step by Step Solution
- Step 1: Write the proportion equation
104,986.08 : 157,586.64 = 81,865.44 : x - Step 2: Convert to fraction form
104,986.08/157,586.64 = 81,865.44/x - Step 3: Cross multiply
104,986.08x = 157,586.64 × 81,865.44 - Step 4: Simplify right side
104,986.08x = 12,900,899,621.72 - Step 5: Solve for x
x = 12,900,899,621.72/104,986.08 - Step 6: Final answer
x = 122,882.00
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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.