Finding the Fourth Proportional to 160,372.56, 239,969.52 and 128,687.76
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Solution
The fourth proportional to 160,372.56, 239,969.52 and 128,687.76 is: 192,558.75
Step by Step Solution
- Step 1: Write the proportion equation
160,372.56 : 239,969.52 = 128,687.76 : x - Step 2: Convert to fraction form
160,372.56/239,969.52 = 128,687.76/x - Step 3: Cross multiply
160,372.56x = 239,969.52 × 128,687.76 - Step 4: Simplify right side
160,372.56x = 30,881,139,997.08 - Step 5: Solve for x
x = 30,881,139,997.08/160,372.56 - Step 6: Final answer
x = 192,558.75
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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.