Finding the Fourth Proportional to 136,872.12, 205,400.52 and 48,126.12
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Solution
The fourth proportional to 136,872.12, 205,400.52 and 48,126.12 is: 72,221.65
Step by Step Solution
- Step 1: Write the proportion equation
136,872.12 : 205,400.52 = 48,126.12 : x - Step 2: Convert to fraction form
136,872.12/205,400.52 = 48,126.12/x - Step 3: Cross multiply
136,872.12x = 205,400.52 × 48,126.12 - Step 4: Simplify right side
136,872.12x = 9,885,130,073.58 - Step 5: Solve for x
x = 9,885,130,073.58/136,872.12 - Step 6: Final answer
x = 72,221.65
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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.