Finding the Fourth Proportional to 125,358.61, 187,861.10 and 69,223.99
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Solution
The fourth proportional to 125,358.61, 187,861.10 and 69,223.99 is: 103,738.34
Step by Step Solution
- Step 1: Write the proportion equation
125,358.61 : 187,861.10 = 69,223.99 : x - Step 2: Convert to fraction form
125,358.61/187,861.10 = 69,223.99/x - Step 3: Cross multiply
125,358.61x = 187,861.10 × 69,223.99 - Step 4: Simplify right side
125,358.61x = 13,004,493,622.36 - Step 5: Solve for x
x = 13,004,493,622.36/125,358.61 - Step 6: Final answer
x = 103,738.34
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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.