Finding the Fourth Proportional to 129,057.76, 193,598.88 and 50,178.08
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Solution
The fourth proportional to 129,057.76, 193,598.88 and 50,178.08 is: 75,271.88
Step by Step Solution
- Step 1: Write the proportion equation
129,057.76 : 193,598.88 = 50,178.08 : x - Step 2: Convert to fraction form
129,057.76/193,598.88 = 50,178.08/x - Step 3: Cross multiply
129,057.76x = 193,598.88 × 50,178.08 - Step 4: Simplify right side
129,057.76x = 9,714,420,088.55 - Step 5: Solve for x
x = 9,714,420,088.55/129,057.76 - Step 6: Final answer
x = 75,271.88
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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.