Finding the Fourth Proportional to 106,146.87, 146,421.84 and 66,333.75
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Solution
The fourth proportional to 106,146.87, 146,421.84 and 66,333.75 is: 91,502.55
Step by Step Solution
- Step 1: Write the proportion equation
106,146.87 : 146,421.84 = 66,333.75 : x - Step 2: Convert to fraction form
106,146.87/146,421.84 = 66,333.75/x - Step 3: Cross multiply
106,146.87x = 146,421.84 × 66,333.75 - Step 4: Simplify right side
106,146.87x = 9,712,709,729.10 - Step 5: Solve for x
x = 9,712,709,729.10/106,146.87 - Step 6: Final answer
x = 91,502.55
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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.