Finding the Fourth Proportional to 107,983.74, 161,974.44 and 36,905.70
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Solution
The fourth proportional to 107,983.74, 161,974.44 and 36,905.70 is: 55,358.15
Step by Step Solution
- Step 1: Write the proportion equation
107,983.74 : 161,974.44 = 36,905.70 : x - Step 2: Convert to fraction form
107,983.74/161,974.44 = 36,905.70/x - Step 3: Cross multiply
107,983.74x = 161,974.44 × 36,905.70 - Step 4: Simplify right side
107,983.74x = 5,977,780,090.31 - Step 5: Solve for x
x = 5,977,780,090.31/107,983.74 - Step 6: Final answer
x = 55,358.15
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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.