Finding the Fourth Proportional to 100,446.36, 138,557.52 and 62,212.08
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Solution
The fourth proportional to 100,446.36, 138,557.52 and 62,212.08 is: 85,816.46
Step by Step Solution
- Step 1: Write the proportion equation
100,446.36 : 138,557.52 = 62,212.08 : x - Step 2: Convert to fraction form
100,446.36/138,557.52 = 62,212.08/x - Step 3: Cross multiply
100,446.36x = 138,557.52 × 62,212.08 - Step 4: Simplify right side
100,446.36x = 8,619,951,518.84 - Step 5: Solve for x
x = 8,619,951,518.84/100,446.36 - Step 6: Final answer
x = 85,816.46
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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.