Finding the Fourth Proportional to 124,345.08, 186,478.74 and 54,153.72
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Solution
The fourth proportional to 124,345.08, 186,478.74 and 54,153.72 is: 81,213.65
Step by Step Solution
- Step 1: Write the proportion equation
124,345.08 : 186,478.74 = 54,153.72 : x - Step 2: Convert to fraction form
124,345.08/186,478.74 = 54,153.72/x - Step 3: Cross multiply
124,345.08x = 186,478.74 × 54,153.72 - Step 4: Simplify right side
124,345.08x = 10,098,517,471.91 - Step 5: Solve for x
x = 10,098,517,471.91/124,345.08 - Step 6: Final answer
x = 81,213.65
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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.