Finding the Fourth Proportional to 118,272.24, 177,415.20 and 48,113.28
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Solution
The fourth proportional to 118,272.24, 177,415.20 and 48,113.28 is: 72,172.70
Step by Step Solution
- Step 1: Write the proportion equation
118,272.24 : 177,415.20 = 48,113.28 : x - Step 2: Convert to fraction form
118,272.24/177,415.20 = 48,113.28/x - Step 3: Cross multiply
118,272.24x = 177,415.20 × 48,113.28 - Step 4: Simplify right side
118,272.24x = 8,536,027,193.86 - Step 5: Solve for x
x = 8,536,027,193.86/118,272.24 - Step 6: Final answer
x = 72,172.70
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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.