Finding the Fourth Proportional to 155,571.13, 214,714.97 and 90,150.79
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Solution
The fourth proportional to 155,571.13, 214,714.97 and 90,150.79 is: 124,423.62
Step by Step Solution
- Step 1: Write the proportion equation
155,571.13 : 214,714.97 = 90,150.79 : x - Step 2: Convert to fraction form
155,571.13/214,714.97 = 90,150.79/x - Step 3: Cross multiply
155,571.13x = 214,714.97 × 90,150.79 - Step 4: Simplify right side
155,571.13x = 19,356,723,923.44 - Step 5: Solve for x
x = 19,356,723,923.44/155,571.13 - Step 6: Final answer
x = 124,423.62
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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.