Finding the Fourth Proportional to 103,972.02, 155,958.04 and 40,821.92
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Solution
The fourth proportional to 103,972.02, 155,958.04 and 40,821.92 is: 61,232.88
Step by Step Solution
- Step 1: Write the proportion equation
103,972.02 : 155,958.04 = 40,821.92 : x - Step 2: Convert to fraction form
103,972.02/155,958.04 = 40,821.92/x - Step 3: Cross multiply
103,972.02x = 155,958.04 × 40,821.92 - Step 4: Simplify right side
103,972.02x = 6,366,506,632.24 - Step 5: Solve for x
x = 6,366,506,632.24/103,972.02 - Step 6: Final answer
x = 61,232.88
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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.