Finding the Fourth Proportional to 127,193.88, 175,491.99 and 79,495.68
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Solution
The fourth proportional to 127,193.88, 175,491.99 and 79,495.68 is: 109,681.81
Step by Step Solution
- Step 1: Write the proportion equation
127,193.88 : 175,491.99 = 79,495.68 : x - Step 2: Convert to fraction form
127,193.88/175,491.99 = 79,495.68/x - Step 3: Cross multiply
127,193.88x = 175,491.99 × 79,495.68 - Step 4: Simplify right side
127,193.88x = 13,950,855,079.60 - Step 5: Solve for x
x = 13,950,855,079.60/127,193.88 - Step 6: Final answer
x = 109,681.81
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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.