Finding the Fourth Proportional to 135,535.43, 187,039.99 and 75,107.08
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Solution
The fourth proportional to 135,535.43, 187,039.99 and 75,107.08 is: 103,648.37
Step by Step Solution
- Step 1: Write the proportion equation
135,535.43 : 187,039.99 = 75,107.08 : x - Step 2: Convert to fraction form
135,535.43/187,039.99 = 75,107.08/x - Step 3: Cross multiply
135,535.43x = 187,039.99 × 75,107.08 - Step 4: Simplify right side
135,535.43x = 14,048,026,181.39 - Step 5: Solve for x
x = 14,048,026,181.39/135,535.43 - Step 6: Final answer
x = 103,648.37
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1.5x scale
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.