Finding the Fourth Proportional to 135,188.65, 186,556.98 and 74,757.70
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Solution
The fourth proportional to 135,188.65, 186,556.98 and 74,757.70 is: 103,163.77
Step by Step Solution
- Step 1: Write the proportion equation
135,188.65 : 186,556.98 = 74,757.70 : x - Step 2: Convert to fraction form
135,188.65/186,556.98 = 74,757.70/x - Step 3: Cross multiply
135,188.65x = 186,556.98 × 74,757.70 - Step 4: Simplify right side
135,188.65x = 13,946,570,743.75 - Step 5: Solve for x
x = 13,946,570,743.75/135,188.65 - Step 6: Final answer
x = 103,163.77
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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.