Finding the Fourth Proportional to 115,679.18, 159,634.26 and 63,998.18
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Solution
The fourth proportional to 115,679.18, 159,634.26 and 63,998.18 is: 88,315.82
Step by Step Solution
- Step 1: Write the proportion equation
115,679.18 : 159,634.26 = 63,998.18 : x - Step 2: Convert to fraction form
115,679.18/159,634.26 = 63,998.18/x - Step 3: Cross multiply
115,679.18x = 159,634.26 × 63,998.18 - Step 4: Simplify right side
115,679.18x = 10,216,302,105.65 - Step 5: Solve for x
x = 10,216,302,105.65/115,679.18 - Step 6: Final answer
x = 88,315.82
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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.