Finding the Fourth Proportional to 106,180.21, 159,270.15 and 72,799.08
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Solution
The fourth proportional to 106,180.21, 159,270.15 and 72,799.08 is: 109,198.50
Step by Step Solution
- Step 1: Write the proportion equation
106,180.21 : 159,270.15 = 72,799.08 : x - Step 2: Convert to fraction form
106,180.21/159,270.15 = 72,799.08/x - Step 3: Cross multiply
106,180.21x = 159,270.15 × 72,799.08 - Step 4: Simplify right side
106,180.21x = 11,594,720,067.20 - Step 5: Solve for x
x = 11,594,720,067.20/106,180.21 - Step 6: Final answer
x = 109,198.50
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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.