Finding the Fourth Proportional to 104,238.65, 143,849.30 and 56,491.99
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Solution
The fourth proportional to 104,238.65, 143,849.30 and 56,491.99 is: 77,958.92
Step by Step Solution
- Step 1: Write the proportion equation
104,238.65 : 143,849.30 = 56,491.99 : x - Step 2: Convert to fraction form
104,238.65/143,849.30 = 56,491.99/x - Step 3: Cross multiply
104,238.65x = 143,849.30 × 56,491.99 - Step 4: Simplify right side
104,238.65x = 8,126,332,575.02 - Step 5: Solve for x
x = 8,126,332,575.02/104,238.65 - Step 6: Final answer
x = 77,958.92
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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.