Finding the Fourth Proportional to 115,334.99, 159,227.68 and 75,028.58
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Solution
The fourth proportional to 115,334.99, 159,227.68 and 75,028.58 is: 103,581.98
Step by Step Solution
- Step 1: Write the proportion equation
115,334.99 : 159,227.68 = 75,028.58 : x - Step 2: Convert to fraction form
115,334.99/159,227.68 = 75,028.58/x - Step 3: Cross multiply
115,334.99x = 159,227.68 × 75,028.58 - Step 4: Simplify right side
115,334.99x = 11,946,626,539.52 - Step 5: Solve for x
x = 11,946,626,539.52/115,334.99 - Step 6: Final answer
x = 103,581.98
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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.