Finding the Fourth Proportional to 103,700.19, 155,515.69 and 40,503.92
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Solution
The fourth proportional to 103,700.19, 155,515.69 and 40,503.92 is: 60,742.37
Step by Step Solution
- Step 1: Write the proportion equation
103,700.19 : 155,515.69 = 40,503.92 : x - Step 2: Convert to fraction form
103,700.19/155,515.69 = 40,503.92/x - Step 3: Cross multiply
103,700.19x = 155,515.69 × 40,503.92 - Step 4: Simplify right side
103,700.19x = 6,298,995,623.24 - Step 5: Solve for x
x = 6,298,995,623.24/103,700.19 - Step 6: Final answer
x = 60,742.37
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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.