Finding the Fourth Proportional to 98,451.12, 135,819.84 and 60,212.32
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Solution
The fourth proportional to 98,451.12, 135,819.84 and 60,212.32 is: 83,066.88
Step by Step Solution
- Step 1: Write the proportion equation
98,451.12 : 135,819.84 = 60,212.32 : x - Step 2: Convert to fraction form
98,451.12/135,819.84 = 60,212.32/x - Step 3: Cross multiply
98,451.12x = 135,819.84 × 60,212.32 - Step 4: Simplify right side
98,451.12x = 8,178,027,668.43 - Step 5: Solve for x
x = 8,178,027,668.43/98,451.12 - Step 6: Final answer
x = 83,066.88
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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.