Finding the Fourth Proportional to 124,863.13, 172,311.69 and 68,274.46
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Solution
The fourth proportional to 124,863.13, 172,311.69 and 68,274.46 is: 94,219.07
Step by Step Solution
- Step 1: Write the proportion equation
124,863.13 : 172,311.69 = 68,274.46 : x - Step 2: Convert to fraction form
124,863.13/172,311.69 = 68,274.46/x - Step 3: Cross multiply
124,863.13x = 172,311.69 × 68,274.46 - Step 4: Simplify right side
124,863.13x = 11,764,487,586.44 - Step 5: Solve for x
x = 11,764,487,586.44/124,863.13 - Step 6: Final answer
x = 94,219.07
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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.