Finding the Fourth Proportional to 127,872.68, 176,457.84 and 71,273.12
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Solution
The fourth proportional to 127,872.68, 176,457.84 and 71,273.12 is: 98,353.31
Step by Step Solution
- Step 1: Write the proportion equation
127,872.68 : 176,457.84 = 71,273.12 : x - Step 2: Convert to fraction form
127,872.68/176,457.84 = 71,273.12/x - Step 3: Cross multiply
127,872.68x = 176,457.84 × 71,273.12 - Step 4: Simplify right side
127,872.68x = 12,576,700,805.26 - Step 5: Solve for x
x = 12,576,700,805.26/127,872.68 - Step 6: Final answer
x = 98,353.31
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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.