Finding the Fourth Proportional to 124,237.20, 186,380.10 and 53,159.70
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Solution
The fourth proportional to 124,237.20, 186,380.10 and 53,159.70 is: 79,749.95
Step by Step Solution
- Step 1: Write the proportion equation
124,237.20 : 186,380.10 = 53,159.70 : x - Step 2: Convert to fraction form
124,237.20/186,380.10 = 53,159.70/x - Step 3: Cross multiply
124,237.20x = 186,380.10 × 53,159.70 - Step 4: Simplify right side
124,237.20x = 9,907,910,201.97 - Step 5: Solve for x
x = 9,907,910,201.97/124,237.20 - Step 6: Final answer
x = 79,749.95
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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.