Finding the Fourth Proportional to 143,224.54, 214,968.09 and 76,739.74
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Solution
The fourth proportional to 143,224.54, 214,968.09 and 76,739.74 is: 115,179.95
Step by Step Solution
- Step 1: Write the proportion equation
143,224.54 : 214,968.09 = 76,739.74 : x - Step 2: Convert to fraction form
143,224.54/214,968.09 = 76,739.74/x - Step 3: Cross multiply
143,224.54x = 214,968.09 × 76,739.74 - Step 4: Simplify right side
143,224.54x = 16,496,595,334.90 - Step 5: Solve for x
x = 16,496,595,334.90/143,224.54 - Step 6: Final answer
x = 115,179.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.