Finding the Fourth Proportional to 107,081.80, 160,622.70 and 75,977.80
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Solution
The fourth proportional to 107,081.80, 160,622.70 and 75,977.80 is: 113,966.70
Step by Step Solution
- Step 1: Write the proportion equation
107,081.80 : 160,622.70 = 75,977.80 : x - Step 2: Convert to fraction form
107,081.80/160,622.70 = 75,977.80/x - Step 3: Cross multiply
107,081.80x = 160,622.70 × 75,977.80 - Step 4: Simplify right side
107,081.80x = 12,203,759,376.06 - Step 5: Solve for x
x = 12,203,759,376.06/107,081.80 - Step 6: Final answer
x = 113,966.70
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1.5x scale
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.