Finding the Fourth Proportional to 119,115.11, 178,746.68 and 74,224.58
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Solution
The fourth proportional to 119,115.11, 178,746.68 and 74,224.58 is: 111,382.98
Step by Step Solution
- Step 1: Write the proportion equation
119,115.11 : 178,746.68 = 74,224.58 : x - Step 2: Convert to fraction form
119,115.11/178,746.68 = 74,224.58/x - Step 3: Cross multiply
119,115.11x = 178,746.68 × 74,224.58 - Step 4: Simplify right side
119,115.11x = 13,267,396,541.22 - Step 5: Solve for x
x = 13,267,396,541.22/119,115.11 - Step 6: Final answer
x = 111,382.98
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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.