Finding the Fourth Proportional to 125,928.99, 173,763.63 and 71,472.69
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Solution
The fourth proportional to 125,928.99, 173,763.63 and 71,472.69 is: 98,621.88
Step by Step Solution
- Step 1: Write the proportion equation
125,928.99 : 173,763.63 = 71,472.69 : x - Step 2: Convert to fraction form
125,928.99/173,763.63 = 71,472.69/x - Step 3: Cross multiply
125,928.99x = 173,763.63 × 71,472.69 - Step 4: Simplify right side
125,928.99x = 12,419,354,060.26 - Step 5: Solve for x
x = 12,419,354,060.26/125,928.99 - Step 6: Final answer
x = 98,621.88
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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.