Finding the Fourth Proportional to 155,486.88, 214,572.76 and 87,505.08
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Solution
The fourth proportional to 155,486.88, 214,572.76 and 87,505.08 is: 120,757.50
Step by Step Solution
- Step 1: Write the proportion equation
155,486.88 : 214,572.76 = 87,505.08 : x - Step 2: Convert to fraction form
155,486.88/214,572.76 = 87,505.08/x - Step 3: Cross multiply
155,486.88x = 214,572.76 × 87,505.08 - Step 4: Simplify right side
155,486.88x = 18,776,206,529.62 - Step 5: Solve for x
x = 18,776,206,529.62/155,486.88 - Step 6: Final answer
x = 120,757.50
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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.