Finding the Fourth Proportional to 137,457.78, 206,128.35 and 48,733.62
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Solution
The fourth proportional to 137,457.78, 206,128.35 and 48,733.62 is: 73,079.75
Step by Step Solution
- Step 1: Write the proportion equation
137,457.78 : 206,128.35 = 48,733.62 : x - Step 2: Convert to fraction form
137,457.78/206,128.35 = 48,733.62/x - Step 3: Cross multiply
137,457.78x = 206,128.35 × 48,733.62 - Step 4: Simplify right side
137,457.78x = 10,045,380,680.13 - Step 5: Solve for x
x = 10,045,380,680.13/137,457.78 - Step 6: Final answer
x = 73,079.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.