Finding the Fourth Proportional to 168,479.68, 252,720.34 and 68,640.84
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Solution
The fourth proportional to 168,479.68, 252,720.34 and 68,640.84 is: 102,961.59
Step by Step Solution
- Step 1: Write the proportion equation
168,479.68 : 252,720.34 = 68,640.84 : x - Step 2: Convert to fraction form
168,479.68/252,720.34 = 68,640.84/x - Step 3: Cross multiply
168,479.68x = 252,720.34 × 68,640.84 - Step 4: Simplify right side
168,479.68x = 17,346,936,422.69 - Step 5: Solve for x
x = 17,346,936,422.69/168,479.68 - Step 6: Final answer
x = 102,961.59
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1.5x scale
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.