Finding the Fourth Proportional to 107,911.36, 161,913.68 and 57,933.08
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Solution
The fourth proportional to 107,911.36, 161,913.68 and 57,933.08 is: 86,924.66
Step by Step Solution
- Step 1: Write the proportion equation
107,911.36 : 161,913.68 = 57,933.08 : x - Step 2: Convert to fraction form
107,911.36/161,913.68 = 57,933.08/x - Step 3: Cross multiply
107,911.36x = 161,913.68 × 57,933.08 - Step 4: Simplify right side
107,911.36x = 9,380,158,176.53 - Step 5: Solve for x
x = 9,380,158,176.53/107,911.36 - Step 6: Final answer
x = 86,924.66
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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.