Finding the Fourth Proportional to 121,119.18, 167,147.19 and 67,409.70
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Solution
The fourth proportional to 121,119.18, 167,147.19 and 67,409.70 is: 93,026.90
Step by Step Solution
- Step 1: Write the proportion equation
121,119.18 : 167,147.19 = 67,409.70 : x - Step 2: Convert to fraction form
121,119.18/167,147.19 = 67,409.70/x - Step 3: Cross multiply
121,119.18x = 167,147.19 × 67,409.70 - Step 4: Simplify right side
121,119.18x = 11,267,341,933.74 - Step 5: Solve for x
x = 11,267,341,933.74/121,119.18 - Step 6: Final answer
x = 93,026.90
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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.