Finding the Fourth Proportional to 146,221.74, 201,785.76 and 79,153.74
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Solution
The fourth proportional to 146,221.74, 201,785.76 and 79,153.74 is: 109,232.03
Step by Step Solution
- Step 1: Write the proportion equation
146,221.74 : 201,785.76 = 79,153.74 : x - Step 2: Convert to fraction form
146,221.74/201,785.76 = 79,153.74/x - Step 3: Cross multiply
146,221.74x = 201,785.76 × 79,153.74 - Step 4: Simplify right side
146,221.74x = 15,972,097,582.74 - Step 5: Solve for x
x = 15,972,097,582.74/146,221.74 - Step 6: Final answer
x = 109,232.03
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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.