Finding the Fourth Proportional to 145,813.26, 201,222.28 and 78,745.26
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Solution
The fourth proportional to 145,813.26, 201,222.28 and 78,745.26 is: 108,668.45
Step by Step Solution
- Step 1: Write the proportion equation
145,813.26 : 201,222.28 = 78,745.26 : x - Step 2: Convert to fraction form
145,813.26/201,222.28 = 78,745.26/x - Step 3: Cross multiply
145,813.26x = 201,222.28 × 78,745.26 - Step 4: Simplify right side
145,813.26x = 15,845,300,756.39 - Step 5: Solve for x
x = 15,845,300,756.39/145,813.26 - Step 6: Final answer
x = 108,668.45
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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.