Finding the Fourth Proportional to 106,788.62, 147,368.97 and 59,043.66
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Solution
The fourth proportional to 106,788.62, 147,368.97 and 59,043.66 is: 81,480.63
Step by Step Solution
- Step 1: Write the proportion equation
106,788.62 : 147,368.97 = 59,043.66 : x - Step 2: Convert to fraction form
106,788.62/147,368.97 = 59,043.66/x - Step 3: Cross multiply
106,788.62x = 147,368.97 × 59,043.66 - Step 4: Simplify right side
106,788.62x = 8,701,203,359.23 - Step 5: Solve for x
x = 8,701,203,359.23/106,788.62 - Step 6: Final answer
x = 81,480.63
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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.