Finding the Fourth Proportional to 106,786.28, 147,357.84 and 59,033.18
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Solution
The fourth proportional to 106,786.28, 147,357.84 and 59,033.18 is: 81,461.79
Step by Step Solution
- Step 1: Write the proportion equation
106,786.28 : 147,357.84 = 59,033.18 : x - Step 2: Convert to fraction form
106,786.28/147,357.84 = 59,033.18/x - Step 3: Cross multiply
106,786.28x = 147,357.84 × 59,033.18 - Step 4: Simplify right side
106,786.28x = 8,699,001,893.13 - Step 5: Solve for x
x = 8,699,001,893.13/106,786.28 - Step 6: Final answer
x = 81,461.79
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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.