Finding the Fourth Proportional to 100,318.19, 149,593.11 and 99,418.82
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Solution
The fourth proportional to 100,318.19, 149,593.11 and 99,418.82 is: 148,251.98
Step by Step Solution
- Step 1: Write the proportion equation
100,318.19 : 149,593.11 = 99,418.82 : x - Step 2: Convert to fraction form
100,318.19/149,593.11 = 99,418.82/x - Step 3: Cross multiply
100,318.19x = 149,593.11 × 99,418.82 - Step 4: Simplify right side
100,318.19x = 14,872,369,728.36 - Step 5: Solve for x
x = 14,872,369,728.36/100,318.19 - Step 6: Final answer
x = 148,251.98
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.