Finding the Fourth Proportional to 119,664.87, 165,165.66 and 74,377.06
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Solution
The fourth proportional to 119,664.87, 165,165.66 and 74,377.06 is: 102,657.83
Step by Step Solution
- Step 1: Write the proportion equation
119,664.87 : 165,165.66 = 74,377.06 : x - Step 2: Convert to fraction form
119,664.87/165,165.66 = 74,377.06/x - Step 3: Cross multiply
119,664.87x = 165,165.66 × 74,377.06 - Step 4: Simplify right side
119,664.87x = 12,284,535,620.62 - Step 5: Solve for x
x = 12,284,535,620.62/119,664.87 - Step 6: Final answer
x = 102,657.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.