Finding the Fourth Proportional to 140,000.99, 193,194.36 and 79,563.65
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Solution
The fourth proportional to 140,000.99, 193,194.36 and 79,563.65 is: 109,793.85
Step by Step Solution
- Step 1: Write the proportion equation
140,000.99 : 193,194.36 = 79,563.65 : x - Step 2: Convert to fraction form
140,000.99/193,194.36 = 79,563.65/x - Step 3: Cross multiply
140,000.99x = 193,194.36 × 79,563.65 - Step 4: Simplify right side
140,000.99x = 15,371,247,475.04 - Step 5: Solve for x
x = 15,371,247,475.04/140,000.99 - Step 6: Final answer
x = 109,793.85
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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.