Finding the Fourth Proportional to 115,926.67, 159,975.73 and 68,182.94
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Solution
The fourth proportional to 115,926.67, 159,975.73 and 68,182.94 is: 94,090.65
Step by Step Solution
- Step 1: Write the proportion equation
115,926.67 : 159,975.73 = 68,182.94 : x - Step 2: Convert to fraction form
115,926.67/159,975.73 = 68,182.94/x - Step 3: Cross multiply
115,926.67x = 159,975.73 × 68,182.94 - Step 4: Simplify right side
115,926.67x = 10,907,615,600.05 - Step 5: Solve for x
x = 10,907,615,600.05/115,926.67 - Step 6: Final answer
x = 94,090.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.