Finding the Fourth Proportional to 108,057.84, 149,105.12 and 62,728.62
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Solution
The fourth proportional to 108,057.84, 149,105.12 and 62,728.62 is: 86,556.96
Step by Step Solution
- Step 1: Write the proportion equation
108,057.84 : 149,105.12 = 62,728.62 : x - Step 2: Convert to fraction form
108,057.84/149,105.12 = 62,728.62/x - Step 3: Cross multiply
108,057.84x = 149,105.12 × 62,728.62 - Step 4: Simplify right side
108,057.84x = 9,353,158,412.53 - Step 5: Solve for x
x = 9,353,158,412.53/108,057.84 - Step 6: Final answer
x = 86,556.96
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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.