Finding the Fourth Proportional to 121,532.46, 167,720.14 and 67,817.68
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Solution
The fourth proportional to 121,532.46, 167,720.14 and 67,817.68 is: 93,591.38
Step by Step Solution
- Step 1: Write the proportion equation
121,532.46 : 167,720.14 = 67,817.68 : x - Step 2: Convert to fraction form
121,532.46/167,720.14 = 67,817.68/x - Step 3: Cross multiply
121,532.46x = 167,720.14 × 67,817.68 - Step 4: Simplify right side
121,532.46x = 11,374,390,784.08 - Step 5: Solve for x
x = 11,374,390,784.08/121,532.46 - Step 6: Final answer
x = 93,591.38
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1.5x scale
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.