Finding the Fourth Proportional to 106,821.60, 160,183.80 and 56,888.88
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Solution
The fourth proportional to 106,821.60, 160,183.80 and 56,888.88 is: 85,307.44
Step by Step Solution
- Step 1: Write the proportion equation
106,821.60 : 160,183.80 = 56,888.88 : x - Step 2: Convert to fraction form
106,821.60/160,183.80 = 56,888.88/x - Step 3: Cross multiply
106,821.60x = 160,183.80 × 56,888.88 - Step 4: Simplify right side
106,821.60x = 9,112,676,976.14 - Step 5: Solve for x
x = 9,112,676,976.14/106,821.60 - Step 6: Final answer
x = 85,307.44
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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.