Finding the Fourth Proportional to 134,433.42, 185,515.97 and 74,004.26
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Solution
The fourth proportional to 134,433.42, 185,515.97 and 74,004.26 is: 102,124.69
Step by Step Solution
- Step 1: Write the proportion equation
134,433.42 : 185,515.97 = 74,004.26 : x - Step 2: Convert to fraction form
134,433.42/185,515.97 = 74,004.26/x - Step 3: Cross multiply
134,433.42x = 185,515.97 × 74,004.26 - Step 4: Simplify right side
134,433.42x = 13,728,970,780.43 - Step 5: Solve for x
x = 13,728,970,780.43/134,433.42 - Step 6: Final answer
x = 102,124.69
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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.