Finding the Fourth Proportional to 118,743.99, 178,115.99 and 100,143.56
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Solution
The fourth proportional to 118,743.99, 178,115.99 and 100,143.56 is: 150,215.33
Step by Step Solution
- Step 1: Write the proportion equation
118,743.99 : 178,115.99 = 100,143.56 : x - Step 2: Convert to fraction form
118,743.99/178,115.99 = 100,143.56/x - Step 3: Cross multiply
118,743.99x = 178,115.99 × 100,143.56 - Step 4: Simplify right side
118,743.99x = 17,837,167,940.23 - Step 5: Solve for x
x = 17,837,167,940.23/118,743.99 - Step 6: Final answer
x = 150,215.33
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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.