Finding the Fourth Proportional to 142,056.48, 213,107.84 and 53,316.96
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Solution
The fourth proportional to 142,056.48, 213,107.84 and 53,316.96 is: 79,984.12
Step by Step Solution
- Step 1: Write the proportion equation
142,056.48 : 213,107.84 = 53,316.96 : x - Step 2: Convert to fraction form
142,056.48/213,107.84 = 53,316.96/x - Step 3: Cross multiply
142,056.48x = 213,107.84 × 53,316.96 - Step 4: Simplify right side
142,056.48x = 11,362,262,180.97 - Step 5: Solve for x
x = 11,362,262,180.97/142,056.48 - Step 6: Final answer
x = 79,984.12
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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.