Finding the Fourth Proportional to 106,325.20, 159,560.70 and 47,203.30
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Solution
The fourth proportional to 106,325.20, 159,560.70 and 47,203.30 is: 70,837.31
Step by Step Solution
- Step 1: Write the proportion equation
106,325.20 : 159,560.70 = 47,203.30 : x - Step 2: Convert to fraction form
106,325.20/159,560.70 = 47,203.30/x - Step 3: Cross multiply
106,325.20x = 159,560.70 × 47,203.30 - Step 4: Simplify right side
106,325.20x = 7,531,791,590.31 - Step 5: Solve for x
x = 7,531,791,590.31/106,325.20 - Step 6: Final answer
x = 70,837.31
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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.