Finding the Fourth Proportional to 135,664.86, 187,217.99 and 75,241.08
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Solution
The fourth proportional to 135,664.86, 187,217.99 and 75,241.08 is: 103,832.96
Step by Step Solution
- Step 1: Write the proportion equation
135,664.86 : 187,217.99 = 75,241.08 : x - Step 2: Convert to fraction form
135,664.86/187,217.99 = 75,241.08/x - Step 3: Cross multiply
135,664.86x = 187,217.99 × 75,241.08 - Step 4: Simplify right side
135,664.86x = 14,086,483,386.82 - Step 5: Solve for x
x = 14,086,483,386.82/135,664.86 - Step 6: Final answer
x = 103,832.96
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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.