Finding the Fourth Proportional to 133,291.44, 183,763.08 and 129,163.68
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Solution
The fourth proportional to 133,291.44, 183,763.08 and 129,163.68 is: 178,072.32
Step by Step Solution
- Step 1: Write the proportion equation
133,291.44 : 183,763.08 = 129,163.68 : x - Step 2: Convert to fraction form
133,291.44/183,763.08 = 129,163.68/x - Step 3: Cross multiply
133,291.44x = 183,763.08 × 129,163.68 - Step 4: Simplify right side
133,291.44x = 23,735,515,660.93 - Step 5: Solve for x
x = 23,735,515,660.93/133,291.44 - Step 6: Final answer
x = 178,072.32
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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.