Finding the Fourth Proportional to 121,079.12, 167,084.99 and 66,626.20
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Solution
The fourth proportional to 121,079.12, 167,084.99 and 66,626.20 is: 91,941.84
Step by Step Solution
- Step 1: Write the proportion equation
121,079.12 : 167,084.99 = 66,626.20 : x - Step 2: Convert to fraction form
121,079.12/167,084.99 = 66,626.20/x - Step 3: Cross multiply
121,079.12x = 167,084.99 × 66,626.20 - Step 4: Simplify right side
121,079.12x = 11,132,237,209.89 - Step 5: Solve for x
x = 11,132,237,209.89/121,079.12 - Step 6: Final answer
x = 91,941.84
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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.