Finding the Fourth Proportional to 107,638.14, 161,457.35 and 51,465.05
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Solution
The fourth proportional to 107,638.14, 161,457.35 and 51,465.05 is: 77,197.64
Step by Step Solution
- Step 1: Write the proportion equation
107,638.14 : 161,457.35 = 51,465.05 : x - Step 2: Convert to fraction form
107,638.14/161,457.35 = 51,465.05/x - Step 3: Cross multiply
107,638.14x = 161,457.35 × 51,465.05 - Step 4: Simplify right side
107,638.14x = 8,309,410,590.62 - Step 5: Solve for x
x = 8,309,410,590.62/107,638.14 - Step 6: Final answer
x = 77,197.64
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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.