Finding the Fourth Proportional to 146,630.70, 220,101.58 and 129,872.49
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Solution
The fourth proportional to 146,630.70, 220,101.58 and 129,872.49 is: 194,946.50
Step by Step Solution
- Step 1: Write the proportion equation
146,630.70 : 220,101.58 = 129,872.49 : x - Step 2: Convert to fraction form
146,630.70/220,101.58 = 129,872.49/x - Step 3: Cross multiply
146,630.70x = 220,101.58 × 129,872.49 - Step 4: Simplify right side
146,630.70x = 28,585,140,748.23 - Step 5: Solve for x
x = 28,585,140,748.23/146,630.70 - Step 6: Final answer
x = 194,946.50
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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.