Finding the Fourth Proportional to 178,989.95, 268,122.29 and 82,790.44
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Solution
The fourth proportional to 178,989.95, 268,122.29 and 82,790.44 is: 124,017.92
Step by Step Solution
- Step 1: Write the proportion equation
178,989.95 : 268,122.29 = 82,790.44 : x - Step 2: Convert to fraction form
178,989.95/268,122.29 = 82,790.44/x - Step 3: Cross multiply
178,989.95x = 268,122.29 × 82,790.44 - Step 4: Simplify right side
178,989.95x = 22,197,961,278.65 - Step 5: Solve for x
x = 22,197,961,278.65/178,989.95 - Step 6: Final answer
x = 124,017.92
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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.