Finding the Fourth Proportional to 115,550.99, 159,461.42 and 67,805.13
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Solution
The fourth proportional to 115,550.99, 159,461.42 and 67,805.13 is: 93,571.70
Step by Step Solution
- Step 1: Write the proportion equation
115,550.99 : 159,461.42 = 67,805.13 : x - Step 2: Convert to fraction form
115,550.99/159,461.42 = 67,805.13/x - Step 3: Cross multiply
115,550.99x = 159,461.42 × 67,805.13 - Step 4: Simplify right side
115,550.99x = 10,812,301,974.06 - Step 5: Solve for x
x = 10,812,301,974.06/115,550.99 - Step 6: Final answer
x = 93,571.70
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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.