Finding the Fourth Proportional to 136,959.57, 205,432.20 and 48,213.68
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Solution
The fourth proportional to 136,959.57, 205,432.20 and 48,213.68 is: 72,317.99
Step by Step Solution
- Step 1: Write the proportion equation
136,959.57 : 205,432.20 = 48,213.68 : x - Step 2: Convert to fraction form
136,959.57/205,432.20 = 48,213.68/x - Step 3: Cross multiply
136,959.57x = 205,432.20 × 48,213.68 - Step 4: Simplify right side
136,959.57x = 9,904,641,325.34 - Step 5: Solve for x
x = 9,904,641,325.34/136,959.57 - Step 6: Final answer
x = 72,317.99
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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.