Finding the Fourth Proportional to 138,471.24, 207,744.04 and 43,705.08
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Solution
The fourth proportional to 138,471.24, 207,744.04 and 43,705.08 is: 65,569.35
Step by Step Solution
- Step 1: Write the proportion equation
138,471.24 : 207,744.04 = 43,705.08 : x - Step 2: Convert to fraction form
138,471.24/207,744.04 = 43,705.08/x - Step 3: Cross multiply
138,471.24x = 207,744.04 × 43,705.08 - Step 4: Simplify right side
138,471.24x = 9,079,469,887.72 - Step 5: Solve for x
x = 9,079,469,887.72/138,471.24 - Step 6: Final answer
x = 65,569.35
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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.