Finding the Fourth Proportional to 142,163.84, 213,289.56 and 102,272.96
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Solution
The fourth proportional to 142,163.84, 213,289.56 and 102,272.96 is: 153,440.95
Step by Step Solution
- Step 1: Write the proportion equation
142,163.84 : 213,289.56 = 102,272.96 : x - Step 2: Convert to fraction form
142,163.84/213,289.56 = 102,272.96/x - Step 3: Cross multiply
142,163.84x = 213,289.56 × 102,272.96 - Step 4: Simplify right side
142,163.84x = 21,813,754,638.30 - Step 5: Solve for x
x = 21,813,754,638.30/142,163.84 - Step 6: Final answer
x = 153,440.95
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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.