Finding the Fourth Proportional to 129,266.72, 193,900.08 and 40,520.68
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Solution
The fourth proportional to 129,266.72, 193,900.08 and 40,520.68 is: 60,781.02
Step by Step Solution
- Step 1: Write the proportion equation
129,266.72 : 193,900.08 = 40,520.68 : x - Step 2: Convert to fraction form
129,266.72/193,900.08 = 40,520.68/x - Step 3: Cross multiply
129,266.72x = 193,900.08 × 40,520.68 - Step 4: Simplify right side
129,266.72x = 7,856,963,093.65 - Step 5: Solve for x
x = 7,856,963,093.65/129,266.72 - Step 6: Final answer
x = 60,781.02
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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.