Finding the Fourth Proportional to 119,187.36, 178,660.08 and 74,845.44
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Solution
The fourth proportional to 119,187.36, 178,660.08 and 74,845.44 is: 112,192.20
Step by Step Solution
- Step 1: Write the proportion equation
119,187.36 : 178,660.08 = 74,845.44 : x - Step 2: Convert to fraction form
119,187.36/178,660.08 = 74,845.44/x - Step 3: Cross multiply
119,187.36x = 178,660.08 × 74,845.44 - Step 4: Simplify right side
119,187.36x = 13,371,892,298.04 - Step 5: Solve for x
x = 13,371,892,298.04/119,187.36 - Step 6: Final answer
x = 112,192.20
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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.