Finding the Fourth Proportional to 100,544.42, 138,752.93 and 55,226.54
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Solution
The fourth proportional to 100,544.42, 138,752.93 and 55,226.54 is: 76,213.52
Step by Step Solution
- Step 1: Write the proportion equation
100,544.42 : 138,752.93 = 55,226.54 : x - Step 2: Convert to fraction form
100,544.42/138,752.93 = 55,226.54/x - Step 3: Cross multiply
100,544.42x = 138,752.93 × 55,226.54 - Step 4: Simplify right side
100,544.42x = 7,662,844,723.71 - Step 5: Solve for x
x = 7,662,844,723.71/100,544.42 - Step 6: Final answer
x = 76,213.52
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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.