Finding the Fourth Proportional to 153,753.73, 212,180.49 and 85,768.99
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Solution
The fourth proportional to 153,753.73, 212,180.49 and 85,768.99 is: 118,361.40
Step by Step Solution
- Step 1: Write the proportion equation
153,753.73 : 212,180.49 = 85,768.99 : x - Step 2: Convert to fraction form
153,753.73/212,180.49 = 85,768.99/x - Step 3: Cross multiply
153,753.73x = 212,180.49 × 85,768.99 - Step 4: Simplify right side
153,753.73x = 18,198,506,325.01 - Step 5: Solve for x
x = 18,198,506,325.01/153,753.73 - Step 6: Final answer
x = 118,361.40
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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.