Finding the Fourth Proportional to 135,458.44, 186,930.59 and 74,204.17
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Solution
The fourth proportional to 135,458.44, 186,930.59 and 74,204.17 is: 102,400.62
Step by Step Solution
- Step 1: Write the proportion equation
135,458.44 : 186,930.59 = 74,204.17 : x - Step 2: Convert to fraction form
135,458.44/186,930.59 = 74,204.17/x - Step 3: Cross multiply
135,458.44x = 186,930.59 × 74,204.17 - Step 4: Simplify right side
135,458.44x = 13,871,028,440.21 - Step 5: Solve for x
x = 13,871,028,440.21/135,458.44 - Step 6: Final answer
x = 102,400.62
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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.