Finding the Fourth Proportional to 115,489.65, 159,424.34 and 70,182.21
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Solution
The fourth proportional to 115,489.65, 159,424.34 and 70,182.21 is: 96,880.99
Step by Step Solution
- Step 1: Write the proportion equation
115,489.65 : 159,424.34 = 70,182.21 : x - Step 2: Convert to fraction form
115,489.65/159,424.34 = 70,182.21/x - Step 3: Cross multiply
115,489.65x = 159,424.34 × 70,182.21 - Step 4: Simplify right side
115,489.65x = 11,188,752,158.08 - Step 5: Solve for x
x = 11,188,752,158.08/115,489.65 - Step 6: Final answer
x = 96,880.99
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1.5x scale
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.