Finding the Fourth Proportional to 167,208.91, 230,744.57 and 90,728.12
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Solution
The fourth proportional to 167,208.91, 230,744.57 and 90,728.12 is: 125,202.79
Step by Step Solution
- Step 1: Write the proportion equation
167,208.91 : 230,744.57 = 90,728.12 : x - Step 2: Convert to fraction form
167,208.91/230,744.57 = 90,728.12/x - Step 3: Cross multiply
167,208.91x = 230,744.57 × 90,728.12 - Step 4: Simplify right side
167,208.91x = 20,935,021,159.53 - Step 5: Solve for x
x = 20,935,021,159.53/167,208.91 - Step 6: Final answer
x = 125,202.79
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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.