Finding the Fourth Proportional to 145,825.26, 201,238.86 and 78,757.26
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Solution
The fourth proportional to 145,825.26, 201,238.86 and 78,757.26 is: 108,685.02
Step by Step Solution
- Step 1: Write the proportion equation
145,825.26 : 201,238.86 = 78,757.26 : x - Step 2: Convert to fraction form
145,825.26/201,238.86 = 78,757.26/x - Step 3: Cross multiply
145,825.26x = 201,238.86 × 78,757.26 - Step 4: Simplify right side
145,825.26x = 15,849,021,219.12 - Step 5: Solve for x
x = 15,849,021,219.12/145,825.26 - Step 6: Final answer
x = 108,685.02
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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.