Finding the Fourth Proportional to 127,709.88, 176,239.44 and 71,134.62
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Solution
The fourth proportional to 127,709.88, 176,239.44 and 71,134.62 is: 98,165.67
Step by Step Solution
- Step 1: Write the proportion equation
127,709.88 : 176,239.44 = 71,134.62 : x - Step 2: Convert to fraction form
127,709.88/176,239.44 = 71,134.62/x - Step 3: Cross multiply
127,709.88x = 176,239.44 × 71,134.62 - Step 4: Simplify right side
127,709.88x = 12,536,725,593.41 - Step 5: Solve for x
x = 12,536,725,593.41/127,709.88 - Step 6: Final answer
x = 98,165.67
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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.