Finding the Fourth Proportional to 146,221.18, 201,785.88 and 79,153.18
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Solution
The fourth proportional to 146,221.18, 201,785.88 and 79,153.18 is: 109,231.74
Step by Step Solution
- Step 1: Write the proportion equation
146,221.18 : 201,785.88 = 79,153.18 : x - Step 2: Convert to fraction form
146,221.18/201,785.88 = 79,153.18/x - Step 3: Cross multiply
146,221.18x = 201,785.88 × 79,153.18 - Step 4: Simplify right side
146,221.18x = 15,971,994,081.10 - Step 5: Solve for x
x = 15,971,994,081.10/146,221.18 - Step 6: Final answer
x = 109,231.74
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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.