Finding the Fourth Proportional to 140,714.20, 211,089.53 and 45,910.99
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Solution
The fourth proportional to 140,714.20, 211,089.53 and 45,910.99 is: 68,872.43
Step by Step Solution
- Step 1: Write the proportion equation
140,714.20 : 211,089.53 = 45,910.99 : x - Step 2: Convert to fraction form
140,714.20/211,089.53 = 45,910.99/x - Step 3: Cross multiply
140,714.20x = 211,089.53 × 45,910.99 - Step 4: Simplify right side
140,714.20x = 9,691,329,300.93 - Step 5: Solve for x
x = 9,691,329,300.93/140,714.20 - Step 6: Final answer
x = 68,872.43
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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.