Finding the Fourth Proportional to 103,623.10, 155,549.85 and 64,224.70
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Solution
The fourth proportional to 103,623.10, 155,549.85 and 64,224.70 is: 96,408.45
Step by Step Solution
- Step 1: Write the proportion equation
103,623.10 : 155,549.85 = 64,224.70 : x - Step 2: Convert to fraction form
103,623.10/155,549.85 = 64,224.70/x - Step 3: Cross multiply
103,623.10x = 155,549.85 × 64,224.70 - Step 4: Simplify right side
103,623.10x = 9,990,142,451.30 - Step 5: Solve for x
x = 9,990,142,451.30/103,623.10 - Step 6: Final answer
x = 96,408.45
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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.