Finding the Fourth Proportional to 145,861.23, 201,288.48 and 78,793.23
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Solution
The fourth proportional to 145,861.23, 201,288.48 and 78,793.23 is: 108,734.65
Step by Step Solution
- Step 1: Write the proportion equation
145,861.23 : 201,288.48 = 78,793.23 : x - Step 2: Convert to fraction form
145,861.23/201,288.48 = 78,793.23/x - Step 3: Cross multiply
145,861.23x = 201,288.48 × 78,793.23 - Step 4: Simplify right side
145,861.23x = 15,860,169,500.99 - Step 5: Solve for x
x = 15,860,169,500.99/145,861.23 - Step 6: Final answer
x = 108,734.65
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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.