Finding the Fourth Proportional to 121,364.48, 182,129.28 and 74,474.24
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Solution
The fourth proportional to 121,364.48, 182,129.28 and 74,474.24 is: 111,762.02
Step by Step Solution
- Step 1: Write the proportion equation
121,364.48 : 182,129.28 = 74,474.24 : x - Step 2: Convert to fraction form
121,364.48/182,129.28 = 74,474.24/x - Step 3: Cross multiply
121,364.48x = 182,129.28 × 74,474.24 - Step 4: Simplify right side
121,364.48x = 13,563,939,709.75 - Step 5: Solve for x
x = 13,563,939,709.75/121,364.48 - Step 6: Final answer
x = 111,762.02
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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.