Finding the Fourth Proportional to 119,281.81, 178,944.64 and 39,324.48
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Solution
The fourth proportional to 119,281.81, 178,944.64 and 39,324.48 is: 58,993.95
Step by Step Solution
- Step 1: Write the proportion equation
119,281.81 : 178,944.64 = 39,324.48 : x - Step 2: Convert to fraction form
119,281.81/178,944.64 = 39,324.48/x - Step 3: Cross multiply
119,281.81x = 178,944.64 × 39,324.48 - Step 4: Simplify right side
119,281.81x = 7,036,904,916.79 - Step 5: Solve for x
x = 7,036,904,916.79/119,281.81 - Step 6: Final answer
x = 58,993.95
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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.