Finding the Fourth Proportional to 141,616.80, 212,434.80 and 48,129.60
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Solution
The fourth proportional to 141,616.80, 212,434.80 and 48,129.60 is: 72,197.66
Step by Step Solution
- Step 1: Write the proportion equation
141,616.80 : 212,434.80 = 48,129.60 : x - Step 2: Convert to fraction form
141,616.80/212,434.80 = 48,129.60/x - Step 3: Cross multiply
141,616.80x = 212,434.80 × 48,129.60 - Step 4: Simplify right side
141,616.80x = 10,224,401,950.08 - Step 5: Solve for x
x = 10,224,401,950.08/141,616.80 - Step 6: Final answer
x = 72,197.66
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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.