Finding the Fourth Proportional to 165,966.56, 248,949.98 and 71,135.20
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Solution
The fourth proportional to 165,966.56, 248,949.98 and 71,135.20 is: 106,702.86
Step by Step Solution
- Step 1: Write the proportion equation
165,966.56 : 248,949.98 = 71,135.20 : x - Step 2: Convert to fraction form
165,966.56/248,949.98 = 71,135.20/x - Step 3: Cross multiply
165,966.56x = 248,949.98 × 71,135.20 - Step 4: Simplify right side
165,966.56x = 17,709,106,172.76 - Step 5: Solve for x
x = 17,709,106,172.76/165,966.56 - Step 6: Final answer
x = 106,702.86
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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.