Finding the Fourth Proportional to 121,020.71, 167,006.21 and 67,304.57
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Solution
The fourth proportional to 121,020.71, 167,006.21 and 67,304.57 is: 92,878.99
Step by Step Solution
- Step 1: Write the proportion equation
121,020.71 : 167,006.21 = 67,304.57 : x - Step 2: Convert to fraction form
121,020.71/167,006.21 = 67,304.57/x - Step 3: Cross multiply
121,020.71x = 167,006.21 × 67,304.57 - Step 4: Simplify right side
121,020.71x = 11,240,281,151.38 - Step 5: Solve for x
x = 11,240,281,151.38/121,020.71 - Step 6: Final answer
x = 92,878.99
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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.