Finding the Fourth Proportional to 127,589.46, 176,070.84 and 79,869.12
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Solution
The fourth proportional to 127,589.46, 176,070.84 and 79,869.12 is: 110,217.75
Step by Step Solution
- Step 1: Write the proportion equation
127,589.46 : 176,070.84 = 79,869.12 : x - Step 2: Convert to fraction form
127,589.46/176,070.84 = 79,869.12/x - Step 3: Cross multiply
127,589.46x = 176,070.84 × 79,869.12 - Step 4: Simplify right side
127,589.46x = 14,062,623,048.46 - Step 5: Solve for x
x = 14,062,623,048.46/127,589.46 - Step 6: Final answer
x = 110,217.75
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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.