Finding the Fourth Proportional to 124,816.38, 172,247.21 and 68,227.75
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Solution
The fourth proportional to 124,816.38, 172,247.21 and 68,227.75 is: 94,154.63
Step by Step Solution
- Step 1: Write the proportion equation
124,816.38 : 172,247.21 = 68,227.75 : x - Step 2: Convert to fraction form
124,816.38/172,247.21 = 68,227.75/x - Step 3: Cross multiply
124,816.38x = 172,247.21 × 68,227.75 - Step 4: Simplify right side
124,816.38x = 11,752,039,582.08 - Step 5: Solve for x
x = 11,752,039,582.08/124,816.38 - Step 6: Final answer
x = 94,154.63
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1.5x scale
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.