Finding the Fourth Proportional to 106,857.93, 147,464.55 and 59,112.99
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Solution
The fourth proportional to 106,857.93, 147,464.55 and 59,112.99 is: 81,576.26
Step by Step Solution
- Step 1: Write the proportion equation
106,857.93 : 147,464.55 = 59,112.99 : x - Step 2: Convert to fraction form
106,857.93/147,464.55 = 59,112.99/x - Step 3: Cross multiply
106,857.93x = 147,464.55 × 59,112.99 - Step 4: Simplify right side
106,857.93x = 8,717,070,469.50 - Step 5: Solve for x
x = 8,717,070,469.50/106,857.93 - Step 6: Final answer
x = 81,576.26
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1.5x scale
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.