Finding the Fourth Proportional to 134,880.78, 186,135.50 and 74,451.45
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Solution
The fourth proportional to 134,880.78, 186,135.50 and 74,451.45 is: 102,743.01
Step by Step Solution
- Step 1: Write the proportion equation
134,880.78 : 186,135.50 = 74,451.45 : x - Step 2: Convert to fraction form
134,880.78/186,135.50 = 74,451.45/x - Step 3: Cross multiply
134,880.78x = 186,135.50 × 74,451.45 - Step 4: Simplify right side
134,880.78x = 13,858,057,499.22 - Step 5: Solve for x
x = 13,858,057,499.22/134,880.78 - Step 6: Final answer
x = 102,743.01
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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.