Finding the Fourth Proportional to 155,091.42, 214,011.05 and 87,092.96
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Solution
The fourth proportional to 155,091.42, 214,011.05 and 87,092.96 is: 120,179.79
Step by Step Solution
- Step 1: Write the proportion equation
155,091.42 : 214,011.05 = 87,092.96 : x - Step 2: Convert to fraction form
155,091.42/214,011.05 = 87,092.96/x - Step 3: Cross multiply
155,091.42x = 214,011.05 × 87,092.96 - Step 4: Simplify right side
155,091.42x = 18,638,854,311.69 - Step 5: Solve for x
x = 18,638,854,311.69/155,091.42 - Step 6: Final answer
x = 120,179.79
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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.