Finding the Fourth Proportional to 129,574.09, 194,277.93 and 54,673.75
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Solution
The fourth proportional to 129,574.09, 194,277.93 and 54,673.75 is: 81,975.52
Step by Step Solution
- Step 1: Write the proportion equation
129,574.09 : 194,277.93 = 54,673.75 : x - Step 2: Convert to fraction form
129,574.09/194,277.93 = 54,673.75/x - Step 3: Cross multiply
129,574.09x = 194,277.93 × 54,673.75 - Step 4: Simplify right side
129,574.09x = 10,621,902,975.34 - Step 5: Solve for x
x = 10,621,902,975.34/129,574.09 - Step 6: Final answer
x = 81,975.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.