Finding the Fourth Proportional to 103,676.53, 155,514.80 and 51,188.53
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Solution
The fourth proportional to 103,676.53, 155,514.80 and 51,188.53 is: 76,782.80
Step by Step Solution
- Step 1: Write the proportion equation
103,676.53 : 155,514.80 = 51,188.53 : x - Step 2: Convert to fraction form
103,676.53/155,514.80 = 51,188.53/x - Step 3: Cross multiply
103,676.53x = 155,514.80 × 51,188.53 - Step 4: Simplify right side
103,676.53x = 7,960,574,005.24 - Step 5: Solve for x
x = 7,960,574,005.24/103,676.53 - Step 6: Final answer
x = 76,782.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.