Finding the Fourth Proportional to 107,992.96, 161,990.88 and 37,874.32
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Solution
The fourth proportional to 107,992.96, 161,990.88 and 37,874.32 is: 56,811.99
Step by Step Solution
- Step 1: Write the proportion equation
107,992.96 : 161,990.88 = 37,874.32 : x - Step 2: Convert to fraction form
107,992.96/161,990.88 = 37,874.32/x - Step 3: Cross multiply
107,992.96x = 161,990.88 × 37,874.32 - Step 4: Simplify right side
107,992.96x = 6,135,294,426.20 - Step 5: Solve for x
x = 6,135,294,426.20/107,992.96 - Step 6: Final answer
x = 56,811.99
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Double scale
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Similar ratio
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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.