Finding the Fourth Proportional to 121,063.76, 167,065.49 and 67,347.62
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Solution
The fourth proportional to 121,063.76, 167,065.49 and 67,347.62 is: 92,938.32
Step by Step Solution
- Step 1: Write the proportion equation
121,063.76 : 167,065.49 = 67,347.62 : x - Step 2: Convert to fraction form
121,063.76/167,065.49 = 67,347.62/x - Step 3: Cross multiply
121,063.76x = 167,065.49 × 67,347.62 - Step 4: Simplify right side
121,063.76x = 11,251,462,798.90 - Step 5: Solve for x
x = 11,251,462,798.90/121,063.76 - Step 6: Final answer
x = 92,938.32
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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.