Finding the Fourth Proportional to 136,908.09, 188,922.24 and 76,473.99
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Solution
The fourth proportional to 136,908.09, 188,922.24 and 76,473.99 is: 105,528.00
Step by Step Solution
- Step 1: Write the proportion equation
136,908.09 : 188,922.24 = 76,473.99 : x - Step 2: Convert to fraction form
136,908.09/188,922.24 = 76,473.99/x - Step 3: Cross multiply
136,908.09x = 188,922.24 × 76,473.99 - Step 4: Simplify right side
136,908.09x = 14,447,637,492.54 - Step 5: Solve for x
x = 14,447,637,492.54/136,908.09 - Step 6: Final answer
x = 105,528.00
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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.