Finding the Fourth Proportional to 178,709.76, 246,639.15 and 102,235.95
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Solution
The fourth proportional to 178,709.76, 246,639.15 and 102,235.95 is: 141,096.87
Step by Step Solution
- Step 1: Write the proportion equation
178,709.76 : 246,639.15 = 102,235.95 : x - Step 2: Convert to fraction form
178,709.76/246,639.15 = 102,235.95/x - Step 3: Cross multiply
178,709.76x = 246,639.15 × 102,235.95 - Step 4: Simplify right side
178,709.76x = 25,215,387,807.44 - Step 5: Solve for x
x = 25,215,387,807.44/178,709.76 - Step 6: Final answer
x = 141,096.87
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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.