Finding the Fourth Proportional to 109,408.70, 150,983.99 and 59,107.70
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Solution
The fourth proportional to 109,408.70, 150,983.99 and 59,107.70 is: 81,568.61
Step by Step Solution
- Step 1: Write the proportion equation
109,408.70 : 150,983.99 = 59,107.70 : x - Step 2: Convert to fraction form
109,408.70/150,983.99 = 59,107.70/x - Step 3: Cross multiply
109,408.70x = 150,983.99 × 59,107.70 - Step 4: Simplify right side
109,408.70x = 8,924,315,335.26 - Step 5: Solve for x
x = 8,924,315,335.26/109,408.70 - Step 6: Final answer
x = 81,568.61
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1.5x scale
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.