Finding the Fourth Proportional to 106,765.66, 147,338.36 and 63,748.91
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Solution
The fourth proportional to 106,765.66, 147,338.36 and 63,748.91 is: 87,974.54
Step by Step Solution
- Step 1: Write the proportion equation
106,765.66 : 147,338.36 = 63,748.91 : x - Step 2: Convert to fraction form
106,765.66/147,338.36 = 63,748.91/x - Step 3: Cross multiply
106,765.66x = 147,338.36 × 63,748.91 - Step 4: Simplify right side
106,765.66x = 9,392,659,851.19 - Step 5: Solve for x
x = 9,392,659,851.19/106,765.66 - Step 6: Final answer
x = 87,974.54
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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.