Finding the Fourth Proportional to 99,107.28, 136,758.88 and 58,814.08
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Solution
The fourth proportional to 99,107.28, 136,758.88 and 58,814.08 is: 81,157.99
Step by Step Solution
- Step 1: Write the proportion equation
99,107.28 : 136,758.88 = 58,814.08 : x - Step 2: Convert to fraction form
99,107.28/136,758.88 = 58,814.08/x - Step 3: Cross multiply
99,107.28x = 136,758.88 × 58,814.08 - Step 4: Simplify right side
99,107.28x = 8,043,347,709.03 - Step 5: Solve for x
x = 8,043,347,709.03/99,107.28 - Step 6: Final answer
x = 81,157.99
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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.