Finding the Fourth Proportional to 100,258.65, 138,356.97 and 54,936.26
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Solution
The fourth proportional to 100,258.65, 138,356.97 and 54,936.26 is: 75,812.06
Step by Step Solution
- Step 1: Write the proportion equation
100,258.65 : 138,356.97 = 54,936.26 : x - Step 2: Convert to fraction form
100,258.65/138,356.97 = 54,936.26/x - Step 3: Cross multiply
100,258.65x = 138,356.97 × 54,936.26 - Step 4: Simplify right side
100,258.65x = 7,600,814,202.05 - Step 5: Solve for x
x = 7,600,814,202.05/100,258.65 - Step 6: Final answer
x = 75,812.06
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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.