Finding the Fourth Proportional to 134,574.40, 201,764.40 and 75,428.20
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Solution
The fourth proportional to 134,574.40, 201,764.40 and 75,428.20 is: 113,087.82
Step by Step Solution
- Step 1: Write the proportion equation
134,574.40 : 201,764.40 = 75,428.20 : x - Step 2: Convert to fraction form
134,574.40/201,764.40 = 75,428.20/x - Step 3: Cross multiply
134,574.40x = 201,764.40 × 75,428.20 - Step 4: Simplify right side
134,574.40x = 15,218,725,516.08 - Step 5: Solve for x
x = 15,218,725,516.08/134,574.40 - Step 6: Final answer
x = 113,087.82
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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.