Finding the Fourth Proportional to 122,076.20, 168,445.68 and 68,363.48
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Solution
The fourth proportional to 122,076.20, 168,445.68 and 68,363.48 is: 94,330.70
Step by Step Solution
- Step 1: Write the proportion equation
122,076.20 : 168,445.68 = 68,363.48 : x - Step 2: Convert to fraction form
122,076.20/168,445.68 = 68,363.48/x - Step 3: Cross multiply
122,076.20x = 168,445.68 × 68,363.48 - Step 4: Simplify right side
122,076.20x = 11,515,532,875.77 - Step 5: Solve for x
x = 11,515,532,875.77/122,076.20 - Step 6: Final answer
x = 94,330.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.