Finding the Fourth Proportional to 107,756.18, 161,636.91 and 36,678.68
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Solution
The fourth proportional to 107,756.18, 161,636.91 and 36,678.68 is: 55,018.92
Step by Step Solution
- Step 1: Write the proportion equation
107,756.18 : 161,636.91 = 36,678.68 : x - Step 2: Convert to fraction form
107,756.18/161,636.91 = 36,678.68/x - Step 3: Cross multiply
107,756.18x = 161,636.91 × 36,678.68 - Step 4: Simplify right side
107,756.18x = 5,928,628,498.08 - Step 5: Solve for x
x = 5,928,628,498.08/107,756.18 - Step 6: Final answer
x = 55,018.92
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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.