Finding the Fourth Proportional to 121,231.99, 167,288.14 and 67,521.99
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Solution
The fourth proportional to 121,231.99, 167,288.14 and 67,521.99 is: 93,173.66
Step by Step Solution
- Step 1: Write the proportion equation
121,231.99 : 167,288.14 = 67,521.99 : x - Step 2: Convert to fraction form
121,231.99/167,288.14 = 67,521.99/x - Step 3: Cross multiply
121,231.99x = 167,288.14 × 67,521.99 - Step 4: Simplify right side
121,231.99x = 11,295,628,116.20 - Step 5: Solve for x
x = 11,295,628,116.20/121,231.99 - Step 6: Final answer
x = 93,173.66
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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.