Finding the Fourth Proportional to 125,358.71, 187,861.28 and 69,224.09
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Solution
The fourth proportional to 125,358.71, 187,861.28 and 69,224.09 is: 103,738.51
Step by Step Solution
- Step 1: Write the proportion equation
125,358.71 : 187,861.28 = 69,224.09 : x - Step 2: Convert to fraction form
125,358.71/187,861.28 = 69,224.09/x - Step 3: Cross multiply
125,358.71x = 187,861.28 × 69,224.09 - Step 4: Simplify right side
125,358.71x = 13,004,524,868.81 - Step 5: Solve for x
x = 13,004,524,868.81/125,358.71 - Step 6: Final answer
x = 103,738.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.