Finding the Fourth Proportional to 139,469.76, 209,170.80 and 97,723.44
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Solution
The fourth proportional to 139,469.76, 209,170.80 and 97,723.44 is: 146,561.45
Step by Step Solution
- Step 1: Write the proportion equation
139,469.76 : 209,170.80 = 97,723.44 : x - Step 2: Convert to fraction form
139,469.76/209,170.80 = 97,723.44/x - Step 3: Cross multiply
139,469.76x = 209,170.80 × 97,723.44 - Step 4: Simplify right side
139,469.76x = 20,440,890,123.55 - Step 5: Solve for x
x = 20,440,890,123.55/139,469.76 - Step 6: Final answer
x = 146,561.45
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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.