Finding the Fourth Proportional to 134,765.20, 202,119.45 and 68,142.70
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Solution
The fourth proportional to 134,765.20, 202,119.45 and 68,142.70 is: 102,199.72
Step by Step Solution
- Step 1: Write the proportion equation
134,765.20 : 202,119.45 = 68,142.70 : x - Step 2: Convert to fraction form
134,765.20/202,119.45 = 68,142.70/x - Step 3: Cross multiply
134,765.20x = 202,119.45 × 68,142.70 - Step 4: Simplify right side
134,765.20x = 13,772,965,045.52 - Step 5: Solve for x
x = 13,772,965,045.52/134,765.20 - Step 6: Final answer
x = 102,199.72
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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.