Finding the Fourth Proportional to 166,665.16, 229,989.06 and 91,199.08
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Solution
The fourth proportional to 166,665.16, 229,989.06 and 91,199.08 is: 125,849.88
Step by Step Solution
- Step 1: Write the proportion equation
166,665.16 : 229,989.06 = 91,199.08 : x - Step 2: Convert to fraction form
166,665.16/229,989.06 = 91,199.08/x - Step 3: Cross multiply
166,665.16x = 229,989.06 × 91,199.08 - Step 4: Simplify right side
166,665.16x = 20,974,790,682.06 - Step 5: Solve for x
x = 20,974,790,682.06/166,665.16 - Step 6: Final answer
x = 125,849.88
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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.