Finding the Fourth Proportional to 116,975.34, 161,441.91 and 71,655.84
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Solution
The fourth proportional to 116,975.34, 161,441.91 and 71,655.84 is: 98,894.82
Step by Step Solution
- Step 1: Write the proportion equation
116,975.34 : 161,441.91 = 71,655.84 : x - Step 2: Convert to fraction form
116,975.34/161,441.91 = 71,655.84/x - Step 3: Cross multiply
116,975.34x = 161,441.91 × 71,655.84 - Step 4: Simplify right side
116,975.34x = 11,568,255,672.25 - Step 5: Solve for x
x = 11,568,255,672.25/116,975.34 - Step 6: Final answer
x = 98,894.82
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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.