Finding the Fourth Proportional to 71,193.98, 106,790.97 and 18,603.52
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Solution
The fourth proportional to 71,193.98, 106,790.97 and 18,603.52 is: 27,905.28
Step by Step Solution
- Step 1: Write the proportion equation
71,193.98 : 106,790.97 = 18,603.52 : x - Step 2: Convert to fraction form
71,193.98/106,790.97 = 18,603.52/x - Step 3: Cross multiply
71,193.98x = 106,790.97 × 18,603.52 - Step 4: Simplify right side
71,193.98x = 1,986,687,946.21 - Step 5: Solve for x
x = 1,986,687,946.21/71,193.98 - Step 6: Final answer
x = 27,905.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.