Finding the Fourth Proportional to 138,234.96, 207,228.96 and 53,975.52
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Solution
The fourth proportional to 138,234.96, 207,228.96 and 53,975.52 is: 80,915.07
Step by Step Solution
- Step 1: Write the proportion equation
138,234.96 : 207,228.96 = 53,975.52 : x - Step 2: Convert to fraction form
138,234.96/207,228.96 = 53,975.52/x - Step 3: Cross multiply
138,234.96x = 207,228.96 × 53,975.52 - Step 4: Simplify right side
138,234.96x = 11,185,290,875.06 - Step 5: Solve for x
x = 11,185,290,875.06/138,234.96 - Step 6: Final answer
x = 80,915.07
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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.