Finding the Fourth Proportional to 99,685.84, 149,529.12 and 29,565.76
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Solution
The fourth proportional to 99,685.84, 149,529.12 and 29,565.76 is: 44,348.75
Step by Step Solution
- Step 1: Write the proportion equation
99,685.84 : 149,529.12 = 29,565.76 : x - Step 2: Convert to fraction form
99,685.84/149,529.12 = 29,565.76/x - Step 3: Cross multiply
99,685.84x = 149,529.12 × 29,565.76 - Step 4: Simplify right side
99,685.84x = 4,420,942,074.93 - Step 5: Solve for x
x = 4,420,942,074.93/99,685.84 - Step 6: Final answer
x = 44,348.75
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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.