Finding the Fourth Proportional to 104,243.66, 143,958.36 and 89,047.65
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Solution
The fourth proportional to 104,243.66, 143,958.36 and 89,047.65 is: 122,972.99
Step by Step Solution
- Step 1: Write the proportion equation
104,243.66 : 143,958.36 = 89,047.65 : x - Step 2: Convert to fraction form
104,243.66/143,958.36 = 89,047.65/x - Step 3: Cross multiply
104,243.66x = 143,958.36 × 89,047.65 - Step 4: Simplify right side
104,243.66x = 12,819,154,529.63 - Step 5: Solve for x
x = 12,819,154,529.63/104,243.66 - Step 6: Final answer
x = 122,972.99
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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.