Finding the Fourth Proportional to 135,099.18, 202,648.45 and 126,878.45
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Solution
The fourth proportional to 135,099.18, 202,648.45 and 126,878.45 is: 190,317.37
Step by Step Solution
- Step 1: Write the proportion equation
135,099.18 : 202,648.45 = 126,878.45 : x - Step 2: Convert to fraction form
135,099.18/202,648.45 = 126,878.45/x - Step 3: Cross multiply
135,099.18x = 202,648.45 × 126,878.45 - Step 4: Simplify right side
135,099.18x = 25,711,721,230.90 - Step 5: Solve for x
x = 25,711,721,230.90/135,099.18 - Step 6: Final answer
x = 190,317.37
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1.5x scale
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.