Finding the Fourth Proportional to 115,785.91, 159,773.46 and 64,795.99
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Solution
The fourth proportional to 115,785.91, 159,773.46 and 64,795.99 is: 89,412.26
Step by Step Solution
- Step 1: Write the proportion equation
115,785.91 : 159,773.46 = 64,795.99 : x - Step 2: Convert to fraction form
115,785.91/159,773.46 = 64,795.99/x - Step 3: Cross multiply
115,785.91x = 159,773.46 × 64,795.99 - Step 4: Simplify right side
115,785.91x = 10,352,679,516.43 - Step 5: Solve for x
x = 10,352,679,516.43/115,785.91 - Step 6: Final answer
x = 89,412.26
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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.