Finding the Fourth Proportional to 121,270.63, 167,358.51 and 67,555.63
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Solution
The fourth proportional to 121,270.63, 167,358.51 and 67,555.63 is: 93,229.58
Step by Step Solution
- Step 1: Write the proportion equation
121,270.63 : 167,358.51 = 67,555.63 : x - Step 2: Convert to fraction form
121,270.63/167,358.51 = 67,555.63/x - Step 3: Cross multiply
121,270.63x = 167,358.51 × 67,555.63 - Step 4: Simplify right side
121,270.63x = 11,306,009,578.91 - Step 5: Solve for x
x = 11,306,009,578.91/121,270.63 - Step 6: Final answer
x = 93,229.58
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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.