Finding the Fourth Proportional to 135,676.62, 187,170.75 and 84,656.34
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Solution
The fourth proportional to 135,676.62, 187,170.75 and 84,656.34 is: 116,786.45
Step by Step Solution
- Step 1: Write the proportion equation
135,676.62 : 187,170.75 = 84,656.34 : x - Step 2: Convert to fraction form
135,676.62/187,170.75 = 84,656.34/x - Step 3: Cross multiply
135,676.62x = 187,170.75 × 84,656.34 - Step 4: Simplify right side
135,676.62x = 15,845,190,650.06 - Step 5: Solve for x
x = 15,845,190,650.06/135,676.62 - Step 6: Final answer
x = 116,786.45
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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.