Finding the Fourth Proportional to 125,479.62, 173,136.30 and 71,782.68
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Solution
The fourth proportional to 125,479.62, 173,136.30 and 71,782.68 is: 99,045.47
Step by Step Solution
- Step 1: Write the proportion equation
125,479.62 : 173,136.30 = 71,782.68 : x - Step 2: Convert to fraction form
125,479.62/173,136.30 = 71,782.68/x - Step 3: Cross multiply
125,479.62x = 173,136.30 × 71,782.68 - Step 4: Simplify right side
125,479.62x = 12,428,187,619.28 - Step 5: Solve for x
x = 12,428,187,619.28/125,479.62 - Step 6: Final answer
x = 99,045.47
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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.