Finding the Fourth Proportional to 115,349.28, 159,151.93 and 67,576.96
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Solution
The fourth proportional to 115,349.28, 159,151.93 and 67,576.96 is: 93,238.58
Step by Step Solution
- Step 1: Write the proportion equation
115,349.28 : 159,151.93 = 67,576.96 : x - Step 2: Convert to fraction form
115,349.28/159,151.93 = 67,576.96/x - Step 3: Cross multiply
115,349.28x = 159,151.93 × 67,576.96 - Step 4: Simplify right side
115,349.28x = 10,755,003,607.53 - Step 5: Solve for x
x = 10,755,003,607.53/115,349.28 - Step 6: Final answer
x = 93,238.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.