Finding the Fourth Proportional to 156,299.99, 215,694.20 and 84,680.01
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Solution
The fourth proportional to 156,299.99, 215,694.20 and 84,680.01 is: 116,858.53
Step by Step Solution
- Step 1: Write the proportion equation
156,299.99 : 215,694.20 = 84,680.01 : x - Step 2: Convert to fraction form
156,299.99/215,694.20 = 84,680.01/x - Step 3: Cross multiply
156,299.99x = 215,694.20 × 84,680.01 - Step 4: Simplify right side
156,299.99x = 18,264,986,589.54 - Step 5: Solve for x
x = 18,264,986,589.54/156,299.99 - Step 6: Final answer
x = 116,858.53
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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.