Finding the Fourth Proportional to 127,863.99, 191,803.67 and 39,118.26
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Solution
The fourth proportional to 127,863.99, 191,803.67 and 39,118.26 is: 58,679.74
Step by Step Solution
- Step 1: Write the proportion equation
127,863.99 : 191,803.67 = 39,118.26 : x - Step 2: Convert to fraction form
127,863.99/191,803.67 = 39,118.26/x - Step 3: Cross multiply
127,863.99x = 191,803.67 × 39,118.26 - Step 4: Simplify right side
127,863.99x = 7,503,025,636.42 - Step 5: Solve for x
x = 7,503,025,636.42/127,863.99 - Step 6: Final answer
x = 58,679.74
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1.5x scale
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.