Finding the Fourth Proportional to 134,861.85, 186,108.43 and 74,432.49
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Solution
The fourth proportional to 134,861.85, 186,108.43 and 74,432.49 is: 102,716.32
Step by Step Solution
- Step 1: Write the proportion equation
134,861.85 : 186,108.43 = 74,432.49 : x - Step 2: Convert to fraction form
134,861.85/186,108.43 = 74,432.49/x - Step 3: Cross multiply
134,861.85x = 186,108.43 × 74,432.49 - Step 4: Simplify right side
134,861.85x = 13,852,512,552.19 - Step 5: Solve for x
x = 13,852,512,552.19/134,861.85 - Step 6: Final answer
x = 102,716.32
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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.