Finding the Fourth Proportional to 186,703.79, 257,640.99 and 106,120.13
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Solution
The fourth proportional to 186,703.79, 257,640.99 and 106,120.13 is: 146,439.96
Step by Step Solution
- Step 1: Write the proportion equation
186,703.79 : 257,640.99 = 106,120.13 : x - Step 2: Convert to fraction form
186,703.79/257,640.99 = 106,120.13/x - Step 3: Cross multiply
186,703.79x = 257,640.99 × 106,120.13 - Step 4: Simplify right side
186,703.79x = 27,340,895,352.13 - Step 5: Solve for x
x = 27,340,895,352.13/186,703.79 - Step 6: Final answer
x = 146,439.96
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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.