Finding the Fourth Proportional to 104,080.72, 143,631.84 and 58,760.68
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Solution
The fourth proportional to 104,080.72, 143,631.84 and 58,760.68 is: 81,089.99
Step by Step Solution
- Step 1: Write the proportion equation
104,080.72 : 143,631.84 = 58,760.68 : x - Step 2: Convert to fraction form
104,080.72/143,631.84 = 58,760.68/x - Step 3: Cross multiply
104,080.72x = 143,631.84 × 58,760.68 - Step 4: Simplify right side
104,080.72x = 8,439,904,588.05 - Step 5: Solve for x
x = 8,439,904,588.05/104,080.72 - Step 6: Final answer
x = 81,089.99
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1.5x scale
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.